2024 Function concave up and down calculator

To find the critical points of a two variable function, find the partial derivatives of the function with respect to x and y. Then, set the partial derivatives equal to zero and solve the system of equations to find the critical points. Use the second partial derivative test in order to classify these points as maxima, minima or saddle points.. Comedian fields crossword

The standard form of a quadratic equation is y = ax² + bx + c.You can use this vertex calculator to transform that equation into the vertex form, which allows you to find the important points of the parabola – its vertex and focus.. The parabola equation in its vertex form is y = a(x - h)² + k, where:. a — Same as the a coefficient in the standard form;Question: Determine the intervals where the graph of the given function is concave up and concave down. f (x)=15x4/3+20x1/3 Concave up: x> and x<, concave down: Show transcribed image text. There are 3 steps to solve this one.This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Find dy/dx and d2y/dx2. x = et, y = te−t For which values of t is the curve concave upward? (Enter your answer using interval notation.) Find dy / dx and d2y / dx2.Use a number line to test the sign of the second derivative at various intervals. A positive f " ( x) indicates the function is concave up; the graph lies above any drawn tangent lines, and the slope of these lines increases with successive increments. A negative f " ( x) tells me the function is concave down; in this case, the curve lies ...Calculus. Find the Concavity f (x)=x^4-6x^2. f (x) = x4 − 6x2 f ( x) = x 4 - 6 x 2. Find the x x values where the second derivative is equal to 0 0. Tap for more steps... x = 1,−1 x = 1, - 1. The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the ...The graph of a function f is concave up when f ′ is increasing. That means as one looks at a concave up graph from left to right, the slopes of the tangent lines will be increasing. Consider Figure 3.4.1 (a), where a concave up graph is shown along with some tangent lines. Notice how the tangent line on the left is steep, downward, corresponding to a small value of f ′.The concavity of a function is the convex shape formed when the curve of a function bends. There are two types of concavities in a graph i.e. concave up and concave down. How To Calculate the Inflection Point. The calculator determines the inflection point of the given point by following the steps mentioned below:To find the domain of a function, consider any restrictions on the input values that would make the function undefined, including dividing by zero, taking the square root of a negative number, or taking the logarithm of a negative number. Remove these values from the set of all possible input values to find the domain of the function.Concave up: (-∞, 0) U (3/2,∞) Concave down: (0,3/2) Find the second derivative: f'(x)=4x^3-9x^2 f''(x)=12x^2-18x Set f''(x) equal to 0 and solve for x and determine for which values of x f''(x) doesn't exist: 12x^2-18x=0 f''(x) exists for all values of x; a polynomial is always continuous. Simplify and solve for x: 6x(2x-3)=0 x=0, x=3/2 The domain of f(x) is (-∞,∞). Let's split up the ...To determine concavity, analyze the sign of f''(x). f(x) = xe^-x f'(x) = (1)e^-x + x[e^-x(-1)] = e^-x-xe^-x = -e^-x(x-1) So, f''(x) = [-e^-x(-1)] (x-1)+ (-e^-x)(1) = e^-x (x-1)-e^-x = e^-x(x-2) Now, f''(x) = e^-x(x-2) is continuous on its domain, (-oo, oo), so the only way it can change sign is by passing through zero. (The only partition numbers are the zeros of f''(x)) f''(x) = 0 if and only ...About this unit. The first and the second derivative of a function give us all sorts of useful information about that function's behavior. The first derivative tells us where a function increases or decreases or has a maximum or minimum value; the second derivative tells us where a function is concave up or down and where it has inflection points.Let's take a look at an example of that. Example 1 For the following function identify the intervals where the function is increasing and decreasing and the intervals where the function is concave up and concave down. Use this information to sketch the graph. h(x) = 3x5−5x3+3 h ( x) = 3 x 5 − 5 x 3 + 3. Show Solution.Free functions Monotone Intervals calculator - find functions monotone intervals step-by-step ... A function basically relates an input to an output, there’s an ...Concave lenses are used for correcting myopia or short-sightedness. Convex lenses are used for focusing light rays to make items appear larger and clearer, such as with magnifying ...The concavity of a function is the convex shape formed when the curve of a function bends. There are two types of concavities in a graph i.e. concave up and concave down. How To Calculate the Inflection Point. The calculator determines the inflection point of the given point by following the steps mentioned below: Possible Answers: Correct answer: Explanation: The intervals where a function is concave up or down is found by taking second derivative of the function. Use the power rule which states: Now, set equal to to find the point (s) of infleciton. In this case, . To find the concave up region, find where is positive. Find step-by-step Biology solutions and your answer to the following textbook question: Determine where each function is increasing, decreasing, concave up, and concave down. With the help of a graphing calculator, sketch the graph of each function and label the intervals where it is increasing, decreasing, concave up, and concave down. Make sure that your graphs and your calculations agree ...f′′(0)=0. By the Second Derivative Test we must have a point of inflection due to the transition from concave down to concave up between the key intervals. f′′(1)=20>0. By the Second Derivative Test we have a relative minimum at x=1, or the point (1, -2). Now we can sketch the graph. CC BY-NC-SA. Now, look at a simple rational function.The concavity of a function is the convex shape formed when the curve of a function bends. There are two types of concavities in a graph i.e. concave up and concave down. How To Calculate the Inflection Point. The calculator determines the inflection point of the given point by following the steps mentioned below:Determine the intervals on which the given function is concave up or down and find the point of inflection. Let f(x)=x(x-8sqrt(x)) The x-coordinate of the point of inflection is The interval on the left of the inflection point is . and on this interval f is Concave Down The interval on the right is . and on this interval f is Concave Up .Free functions calculator - explore function domain, range, intercepts, extreme points and asymptotes step-by-stepWe can calculate the second derivative to determine the concavity of the function's curve at any point. Calculate the second derivative. Substitute the value of x. If f " (x) > 0, the graph is concave upward at that value of x. If f " (x) = 0, the graph may have a point of inflection at that value of x. How do you find concave upwards and ...An inflection point is a point on a function where the curvature of the function changes sign. ... Use Wolfram|Alpha to explore how the concavity of functions ...Find any infiection points. Select the correct choice below and fill in any answer boxes within your choice A. The function is concave up on and concave down on (Type your answors in interval notation. Use a comma to separale answers as needed) B. The function is concave up on (− ∞, ∞). C. The function is concive down on (− ∞, ∞).Calculus questions and answers. Determine the intervals on which the given function is concave up or down and find the points of inflection. Let f (x) = (x² - 9) e Inflection Point (s) = 3, -5 The left-most interval is (-inf, -4) The middle interval is (-4, 2) The right-most interval is (-1+2sqrt2, inf) and on this interval f is Concave Up and ...To calculate the inverse of a function, swap the x and y variables then solve for y in terms of x. What are the 3 methods for finding the inverse of a function? There are 3 methods for finding the inverse of a function: algebraic method, graphical method, and …Free Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-stepThis graph determines the concavity and inflection points for any function equal to f(x). Green = concave up, red = concave down, blue bar = inflection point. Free Functions Concavity Calculator - find function concavity intervlas step-by-step Most graphing calculators and graphing utilities can estimate the location of maxima and minima. Below are screen images from two different technologies, showing the estimate for the local maximum and minimum. ... Estimate from the graph shown the intervals on which the function is concave down and concave up. On the far left, the graph is ...Key Concepts. Concavity describes the shape of the curve. If the average rates are increasing on an interval then the function is concave up and if the average rates are decreasing on an interval then the function is concave down on the interval. A function has an inflection point when it switches from concave down to concave up or visa versa.Question: To determine the intervals where a function is concave up and concave down, the first step is to find all the x values where (select all that are needed): f' (x) = 0 f (x) = 0 f' (2) is undefined f'' (x) = 0 of'' (x) is undefined f (x) is undefined. There are 2 steps to solve this one.Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Concavity finder. Save Copy. Log InorSign Up. Type the function below after the f(x) = . Then simply click the red line and where it intersects to find the point of concavity.Green = concave up, red = concave down, blue bar = inflection point. This graph determines the concavity and inflection points for any function equal to f(x). 1Step 1. By the Sum Rule, the derivative of − 4 x 3 − 30 x 2 + 432 x + 1 with respect to x is d d x [ − 4 x 3] + d d x [ − 30 x 2] + d d x [ 432 x] + d d x [ 1]. Determine the open intervals in which the function is concave up or down. Record those intervals below. If there is more than one, be sure to list them separated with commas.Finding the Intervals where a Function is Concave Up or Down f(x) = (x^2 + 3)/(x^2 - 1)If you enjoyed this video please consider liking, sharing, and subscri...Find step-by-step Biology solutions and your answer to the following textbook question: Determine where each function is increasing, decreasing, concave up, and concave down. With the help of a graphing calculator, sketch the graph of each function and label the intervals where it is increasing, decreasing, concave up, and concave down. Make sure that your graphs and your calculations agree ...Determine where each function is increasing, decreasing, concave up, and concave down. With the help of a graphing calculator, sketch the graph of each function and label the intervals where it is increasing, decreasing, concave up, and concave down. Make sure that your graphs and your calculations agree. y = − 2 x 2 + 3 y=\frac{-2}{x^{2}+3 ...Take a "test number" from each interval and plug it into your function, in this case $-\cos x - \sin x$, and see if you you get a positive or negative number. The sign at the test point is the sign of the function on the entire interval. Here, your function is $2\pi$-periodic, so you only need to determine how the sign behaves over one period.Free functions calculator - explore function domain, range, intercepts, extreme points and asymptotes step-by-stepWith just a few clicks, users can access a wide range of online calculators that can perform calculations in a variety of fields, including finance, physics, chemistry, and engineering. These calculators are often designed with user-friendly interfaces that are easy to use and provide clear and concise results. Concave Up Or Down Calculator.Second Derivative and Concavity. Graphically, a function is concave up if its graph is curved with the opening upward (Figure $\PageIndex{1a}$). Similarly, a function is concave down if its graph opens downward (Figure $\PageIndex{1b}$).. Figure $\PageIndex{1}$ This figure shows the concavity of a function at several points.Solution. For problems 3 - 8 answer each of the following. Determine a list of possible inflection points for the function. Determine the intervals on which the function is concave up and concave down. Determine the inflection points of the function. f (x) = 12+6x2 −x3 f ( x) = 12 + 6 x 2 − x 3 Solution. g(z) = z4 −12z3+84z+4 g ( z) = z ...Question: 4 Consider the function f(x)=ax3+bx where a>0. (a) Consider b>0. i. Find the x-intercepts. ii. Find the intervals on which f is increasing and decreasing. iii. Identify any local extrema. iv. Find the intervals on which f is concave up and concave down. (b) Consider b<0. i. Find the x-intercepts. ii. Find the intervals on which f is ...Second Derivative and Concavity. Graphically, a function is concave up if its graph is curved with the opening upward (Figure $\PageIndex{1a}$). Similarly, a function is concave down if its graph opens downward (Figure $\PageIndex{1b}$).. Figure $\PageIndex{1}$ This figure shows the concavity of a function at several points.concavity. Have a question about using Wolfram|Alpha? Contact Pro Premium Expert Support ». Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music….Determine whether the function is concave up and concave down. Find the intervals on which f(x) = x^3 + 1 is concave up. Given the function f(x) = x(x-4)^3 , find the intervals where the function is concave up or down. For the function f(x) = 12x^5 + 45x^4 - 360x^3 + 4 , find the intervals where the function is concave up or down.The Maclaurin Series is a special case of the Taylor Series centered at x = 0 x = 0. In a power series, a function is expressed as the sum of terms involving powers of x x, often from x0 x 0 (the constant term) to higher powers. The calculator will find the Taylor (or power) series expansion of the given function around the given point, with ...Example 1: Determine the concavity of f (x) = x 3 − 6 x 2 −12 x + 2 and identify any points of inflection of f (x). Because f (x) is a polynomial function, its domain is all real numbers. Testing the intervals to the left and right of x = 2 for f″ (x) = 6 x −12, you find that. hence, f is concave downward on (−∞,2) and concave ...We know that a function f is concave up where f " > 0 and concave down where f " < 0. This is easy to implement on the TI-89. For instance, is y = x 3 - 3x + 5 concave up or down at x = 3? Type "d(x 3 - 3x + 5, x, 2)|x=3" (You can get the derivative function from the menu, or press ) and press .If the result is positive, the answer is "concave up", and if the answer is negative, the answer is ...Transcript. Inflection points are points where the function changes concavity, i.e. from being "concave up" to being "concave down" or vice versa. They can be found by considering where the second derivative changes signs. In similar to critical points in the first derivative, inflection points will occur when the second derivative is either ...(a) Calculate dy dx and d2y dx2 as functions of t. dy dx = d2y dx2 = (b) Calculate the intervals of t on which the curve is increasing/decreasing and concave up/concave down. (Enter your answer using interval notation.) increasing decreasing concave up concave down (c) Find the intercepts and the points where horizontal/vertical tangent lines ...For $$$ x\gt0 $$$, $$$ f^{\prime\prime}(x)=6x\gt0 $$$ and the curve is concave up. This confirms that $$$ x=0 $$$ is an inflection point where the concavity changes from down to up. Concavity. Concavity describes the shape of the curve of a function and how it bends. The curve can be concave up (convex down), concave down (convex up), or neither.Advanced Math questions and answers. Calculus AB Assignment Concavity 3. Consider the function f (x - 2x2-3x+6 . A. Find '' x . (Show your work!) B. Graph/" (x on your calculator and use this graph to answer the following questions: On what interval (s) is ex concave up, and how did you use the graph of /" (x to estimate this? On what interval ...Here’s another way to define inflection points: when a polynomial function changes from being concave up to concave down, it means that the function is increasing at an increasing rate, and then begins to increase at a decreasing rate. This corresponds to a point of inflection where the rate of change of the function is at its …For example, if some random function is concave down when x < 2, is it possible for there to be more than one x value < 0 where f' = 0? Thanks! Answer Button navigates to signup page ... When f''(x) is positive, f(x) is concave up When f''(x) is negative, f(x) is concave downThis problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: The graph of a function is given below. Determine the open intervals on which the function is concave up and concave down, and the inflection points of the graph. Here’s the best way to solve it.Please see the explanation. Because the quadratic function is zero, when x = -1 and x = 3, it will have the factors: y = k(x + 1)(x - 3) where k is an unknown constant that one can use to force the quadratic to pass through a point with a non-zero y coordinate. If k > 0, then the quadratic opens upward. If k < 0, then the quadratic opens downward. I will multiply the factors: y = k(x^2 -2x - 3 ...Graphically, a function is concave up if its graph is curved with the opening upward (Figure 1a). Similarly, a function is concave down if its graph opens downward (Figure 1b). Figure 1. This figure shows the concavity of a function at several points. Notice that a function can be concave up regardless of whether it is increasing or decreasing.The graph of a function f is concave up when f ′ is increasing. That means as one looks at a concave up graph from left to right, the slopes of the tangent lines will be increasing. Consider Figure 3.4.1 (a), where a concave up graph is shown along with some tangent lines. Notice how the tangent line on the left is steep, downward, corresponding to a small value of f ′.For example, if some random function is concave down when x < 2, is it possible for there to be more than one x value < 0 where f' = 0? Thanks! Answer Button navigates to signup page ... When f''(x) is positive, f(x) is concave up When f''(x) is negative, f(x) is concave downExplore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.concave up and concave down. 7 Inflection Point Let f be continuous at c. ... =0 or f"(x) is undefined. 8 EX 4 For this function, determine where it is increasing and decreasing, where it is concave up and down, find all max/min and inflection points. Use this information to sketch the graph. Created Date:Concave up on (√3, ∞) since f′′ (x) is positive. The graph is concave down when the second derivative is negative and concave up when the second derivative is positive. Concave down on ( - ∞, - √3) since f′′ (x) is negative. Concave up on ( - √3, 0) since f′′ (x) is positive.So, for example, let f ( x) = x 4 − 4 x 3 and follow the steps to see where the function is concave up or concave down: Step 1: Find the second derivative. f ′ ( x) = 4 x 3 − 12 x 2. f ...An inflection point is defined as a point on the curve in which the concavity changes. (i.e) sign of the curvature changes. We know that if f " > 0, then the function is concave up and if f " < 0, then the function is concave down. If the function changes from positive to negative, or from negative to positive, at a specific point x = c ...The function is concave up on and concave down on (Type your answers in interval notation. Use a comma to separate answers as needed.) OB. The function is concave up on (-00,00). OC. The function is concave down on (-00,00) 19 접 Select the correct choice below and fill in any answer boxes within your choice. A. The function has an inflection ...open intervals where the function is concave up and concave down. 1) y = x3 − 3x2 + 4 x y −8 −6 −4 −2 2 4 6 8 −8 −6 −4 −2 2 4 6 8 Inflection point at: x = 1 No discontinuities exist.Green = concave up, red = concave down, blue bar = inflection point. This graph determines the concavity and inflection points for any function equal to f(x). 1Excel is a powerful tool that allows users to perform a wide range of calculations, including time calculations. Whether you need to track working hours, calculate project duration...The fact that its derivative, $f'\text{,}$ is decreasing makes $f$ concave down on the interval. Figure $\PageIndex{7}$. At left, a function that is concave up; at right, one that is concave down. We state these most recent observations formally as the definitions of the terms concave up and concave down.For problems 7-15, calculate each of the following: (a) The intervals on which f(x) is increasing (b) The intervals on which f(x) is decreasing (c) The intervals on which f(x) is concave up (d) The intervals on which f(x) is concave down (e) All points of in ection. Express each as an ordered pair (x;y) 7. f(x) = x3 2x+ 3 8. f(x) = x x 2We say this function f f is concave up. Figure 4.34(b) shows a function f f that curves downward. As x x increases, the slope of the tangent line decreases. Since the derivative decreases as x x increases, f ′ f ′ is a decreasing function. We say this function f f is concave down.The second derivative of a function may also be used to determine the general shape of its graph on selected intervals. A function is said to be concave upward on an interval if f″(x) > 0 at each point in the interval and concave downward on an interval if f″(x) < 0 at each point in the interval. If a function changes from concave upward to concave downward …About this unit. The first and the second derivative of a function give us all sorts of useful information about that function's behavior. The first derivative tells us where a function increases or decreases or has a maximum or minimum value; the second derivative tells us where a function is concave up or down and where it has inflection points.Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Concavity | DesmosThe Maclaurin Series is a special case of the Taylor Series centered at x = 0 x = 0. In a power series, a function is expressed as the sum of terms involving powers of x x, often from x0 x 0 (the constant term) to higher powers. The calculator will find the Taylor (or power) series expansion of the given function around the given point, with ... Function f is graphed. The x-axis is unnumbered. The graph consists of a curve. The curve starts in quadrant 2, moves downward concave up to a minimum point in quadrant 1, moves upward concave up and then concave down to a maximum point in quadrant 1, moves downward concave down and ends in quadrant 4. This question asks us to examine the concavity of the function . We will need to find the second derivative in order to determine where the function is concave upward and downward. Whenever its second derivative is positive, a function is concave upward. Let us begin by finding the first derivative of f(x). We will need to use the Product Rule.A consequence of the concavity test is the following test to identify where we have extrema and inflection points of f. The Second Derivative Test for Extrema is as follows: Suppose that f is a continuous function near c and that c is a critical value of f Then. If f′′ (c)<0, then f has a relative maximum at x=c.Concave means "hollowed out or rounded inward" and is easily remembered because these surfaces "cave" in. The opposite is convex meaning "curved or rounded outward.". Both words have been around for centuries but are often mixed up. Advice in mirror may be closer than it appears.What x values is the function concave down if #f(x) = 15x^(2/3) + 5x#? ... On what intervals the following equation is concave up, concave down and where it's inflection... See all questions in Analyzing Concavity of a Function Impact of this question. 7581 views around the world ...Free Parabola calculator - Calculate parabola foci, vertices, axis and directrix step-by-stepFind step-by-step Biology solutions and your answer to the following textbook question: Determine where each function is increasing, decreasing, concave up, and concave down. With the help of a graphing calculator, sketch the graph of each function and label the intervals where it is increasing, decreasing, concave up, and concave down. Make sure that your graphs and your calculations agree ... Question: use the first derivative and the second derivative test to determine where each function is increasing, decreasing, concave up, and concave down. y=x^3-4x^2+4x+3 x ER. There’s just one step to solve this. c) Determine intervals where f is concave up or concave down. (Enter your answers using interval notation.) 1) concave up. 2) concave down. Determine the locations of inflection points of f. Sketch the curve, then use a calculator to compare your answer. If you cannot determine the exact answer analytically, use a calculator. When the second derivative is negative, the function is concave downward. And the inflection point is where it goes from concave upward to concave downward (or vice versa). Example: y = 5x 3 + 2x 2 − 3x. Let's work out the second derivative: The derivative is y' = 15x2 + 4x − 3. The second derivative is y'' = 30x + 4. If a function is bent upwards, it’s referred to as concave up. Conversely, if it bends downward, it’s concave down. The point of inflection is where this change in bending direction takes place. Understanding the concavity function is pivotal, especially when we’re on the lookout for inflection points. How to Find Concavity?Critical point at x=1/sqrte, concave down on (0,1/e^("3/2")), concave up on (1/e^("3/2"),+oo), point of inflection at x=1/e^("3/2") > Finding critical points: For the function f(x), a critical point at x=c where f(c) exists is a point where either f'(c)=0 or f'(c) doesn't exist. Thus, to find critical values, we must find the derivative of the function. To do this to y=x^2lnx, we must use the ...

Type the function below after the f(x) = . Then simply click the red line and where it intersects to find the point of concavity. DISCLAIMER This graph won't show the points of concavity if the point doesn't exist within the original function or in the first two derivatives.. Exam 955 practice test free

Given the functions shown below, find the open intervals where each function’s curve is concaving upward or downward. a. f ( x) = x x + 1. b. g ( x) = x x 2 − 1. c. h ( x) = 4 x 2 – 1 x. 3. Given f ( x) = 2 x 4 – 4 x 3, find its points of inflection. Discuss the concavity of the function’s graph as well. We first established that the graph of a function is concave up if the function is increasing at an increasing rate. Consequently, the function is concave down if the is increasing at a decreasing rate. Since here the coefficient x x x is greater than 0 0 0 and the exponent is less than 1 1 1, it means that the function is concave down.Example 5.4.1. Describe the concavity of f(x) = x3 − x. Solution. The first dervative is f ′ (x) = 3x2 − 1 and the second is f ″ (x) = 6x. Since f ″ (0) = 0, there is potentially an inflection point at zero. Since f ″ (x) > 0 when x > 0 and f ″ (x) < 0 when x < 0 the concavity does change from down to up at zero, and the curve is ...With just a few clicks, users can access a wide range of online calculators that can perform calculations in a variety of fields, including finance, physics, chemistry, and engineering. These calculators are often designed with user-friendly interfaces that are easy to use and provide clear and concise results. Concave Up Or Down Calculator.Let’s take a look at an example of that. Example 1 For the following function identify the intervals where the function is increasing and decreasing and the intervals where the function is concave up and concave down. Use this information to sketch the graph. h(x) = 3x5−5x3+3 h ( x) = 3 x 5 − 5 x 3 + 3. Show Solution.Managing payroll can be a complex and time-consuming task for any business. From calculating employee wages to deducting taxes, it requires precision and accuracy. Luckily, there a...Determine the intervals where the graph of the function f(x)=x+1/x is concave up and concave down and inflection point? Calculus. 1 Answer marfre Apr 10, 2018 concave up: #(0, oo)#; concave down: #(-oo, 0)# no inflection point. Explanation: Given: #f(x) = x + 1/x = (x^2 + 1)/x# There is a vertical ... How do you calculate the ideal gas law ...Subject classifications. A function f (x) is said to be concave on an interval [a,b] if, for any points x_1 and x_2 in [a,b], the function -f (x) is convex on that interval (Gradshteyn and Ryzhik 2000).Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site When a function is concave up, the second derivative will be positive and when it is concave down the second derivative will be negative. Inflection points are where a graph switches concavity from up to down or from down to up. Inflection points can only occur if the second derivative is equal to zero at that point. About Andymath.com The concavity of the graph of a function refers to the curvature of the graph over an interval; this curvature is described as being concave up or concave down. Generally, a concave up curve has a shape resembling "∪" and a concave down curve has a shape resembling "∩" as shown in the figure below. Concave up. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer. Question: Consider a monopoly with the demand function 𝑃𝑄=40−6𝑄.P (Q)=40-6Q. Calculate its Marginal Revenue.Example 3.5.3: Curve sketching. Sketch f(x) = 5 ( x − 2) ( x + 1) x2 + 2x + 4. Solution. We again follow Key Idea 4. We assume that the domain of f is all real numbers and consider restrictions. The only restrictions come when the denominator is 0, but this never occurs. Therefore the domain of f is all real numbers, R..

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