Determine the intervals on which the function is concave up or down and find the points of inflection. f (x) = 6 x 3 − 5 x 2 + 6 (Give your answer as a comma-separated list of points in the form (* ∗).Express numbers in exact form. Use symbolic notation and fractions where needed.) points of inflection: Determine the interval on which f is concave up. (Give your answer as an interval in ...Question: Come up with your own twice-differentiable function and draw its graph without a calculator by analyzing its properties. These properties must be included: zeros, symmetry, and first- and second-order derivatives, local and global extreme values, the concavity test, concave up, and concave down. Then, graph your function using your ...Concave up (also called convex) or concave down are descriptions for a graph, or part of a graph: A concave up graph looks roughly like the letter U. A concave down graph is shaped like an upside down U (“⋒”). They tell us something about the shape of a graph, or more specifically, how it bends. That kind of information is useful when it ...A function is concave up for the intervals where d 2 f(x) /dx 2 > 0 and concave down for the intervals where d 2 f(x) /dx 2 < 0. Intervals where f(x) is concave up: −12x − 6 > 0. −12x > 6. ⇒ x < −1/2. Intervals where f(x) is concave down: −12x − 6 < 0. −12x < 6. ⇒ x > −1/2Question: For the following exercises, determine a. intervals where f is increasing or decreasing, b. local minima and maxima of f, C. intervals where f is concave up and concave down, and the inflection points of f d. 224. f (x) = x2-6x 225. f (x) = x3-6x2 226, f (x) = x4-6x5. 226. Here’s the best way to solve it.Answer: Yes, the graph changes from concave-down to concave-up. 4. Use the trace command to approach x = -1. Look at the y-values on both sides of x = -1. Do the same for x = 2. a. Discuss what happens to the y-values on each side of x = -1. Answer: Students should see that the two function values on both sides of x = -1 are less than thef (x) = x³ is increasing on (-∞,∞). A function f (x) increases on an interval I if f (b) ≥ f (a) for all b > a, where a,b in I. If f (b) > f (a) for all b>a, the function is said to be strictly increasing. x³ is not strictly increasing, but it does meet the criteria for an increasing function throughout it's domain = ℝ.Calculate how much you'll pay in property taxes on your home, given your location and assessed home value. Compare your rate to the Tennessee and U.S. average. Calculators Helpful ...Is : ; concave up or concave down? 5.9 Connecting , ñ, and ñ ñ Calculus 1. A particle's position along the -axis is measured by : ; L 5 7 7 F3 6 E81 where 0. Find the …Web concave (down) when x > 0. Similarly, it is convex (concave up) for x < 0, and it has a point of inflection at x = 0. F(x)-1 1 F(x) is an odd function. To see this ...Answer to . Find the intervals on which the function is concave up or down,...Equations Inequalities Scientific Calculator Scientific Notation Arithmetics Complex Numbers Polar/Cartesian Simultaneous Equations System of Inequalities Polynomials Rationales Functions Arithmetic & Comp. Coordinate Geometry Plane Geometry Solid ... Find functions extreme and saddle points step-by-step. calculus-function-extreme-points ...To find the y-intercept, you make all x-values ... If the second derivative is zero, the function is not concave up or down at that point. ... calculator. So ...Therefore the second derivative is concave down (-4,0) and concave up (0,4). Method 3: based on the given curve, the function has inflection points at x=-4, x=0, and x=4, so at those points the second derivative equals 0. The function's rate of change (slope) is increasing around -2 and decreasing around 2, therefore the second derivative is ...Determine the intervals on which the function f (x) Find the intervals on which the function f (x) is concave up or concave down. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)f (x)=xln (6x)concave upconcave downIdentify the locations of any inflection points. Then verify your algebraic answers with ...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?In other words, the purchase price of a house should equal the total amount of the mortgage loan and the down payment. Often, a down payment for a home is expressed as a percentage of the purchase price. As an example, for a $250,000 home, a down payment of 3.5% is $8,750, while 20% is $50,000.The opposite of the dividend payout ratio, here's exactly how to calculate a company's plowback ratio. The opposite of the dividend payout ratio, a company&aposs plowback ratio is ...Math. Advanced Math. 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?L2cos𝑥1 is concave down on B0, 6 C. a. What is the estimate for 𝑓 :1 ; using the local linear approximation for 𝑓 at 𝑥 6? Give an exact answer (no rounding). b. Is it an underestimate or overestimate? Explain. 4. 𝑓 :𝑥 ; L Ø . ã ë > 5 is concave up on 𝑥 F1. a. What is the estimate for 𝑓 :0.1 ; using the localWe 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 ...Dec 21, 2020 · 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 ... We must first find the roots, the inflection points: f′′ (x)=0=20x3−12x2⇒ 5x3−3x2=0⇒ x2 (5x−3)=0. The roots and thus the inflection points are x=0 and x=35. For any value greater than 35, the value of 0">f′′ (x)>0 and thus the graph is convex. For all other values besides the inflection points f′′ (x)<0 and thus the graph ... So our task is to find where a curve goes from concave upward to concave downward (or vice versa). inflection points. Calculus. Derivatives help us! The ...Find function concavity intervlas step-by-step. function-concavity-calculator. he. פוסטים קשורים בבלוג של Symbolab. Functions. A function basically relates an input to an output, there's an input, a relationship and an output. For every input...First, recall that the area of a trapezoid with a height of h and bases of length b1 and b2 is given by Area = 1 2h(b1 + b2). We see that the first trapezoid has a height Δx and parallel bases of length f(x0) and f(x1). Thus, the area of the first trapezoid in Figure 2.5.2 is. 1 2Δx (f(x0) + f(x1)).Determine the intervals on which the graph of 𝑦=𝑓 (𝑥)y=f (x) is concave up or concave down, and find the 𝑥-x-values at which the points of inflection occur. 𝑓 (𝑥)=𝑥 (𝑥−7sqrt (x)), 𝑥>0. (Enter an exact answer. Use symbolic notation and fractions where needed. Give your answer in the form of a comma separated list, if ...Find where graph is concave up and concave down and then find the point ofinflection of f(x)=ln(x2+1) This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.Symbolab is the best step by step calculator for a wide range of physics problems, including mechanics, electricity and magnetism, and thermodynamics. ... To solve math problems step-by-step start by reading the problem carefully and understand what you are being asked to find. Next, identify the relevant information, define the variables, and ...concave up and down . New Resources. alg2_05_05_01_applet_exp_flvs; Kopie von parabel - parabol; aperiodic monotile construction_step by step42. A function f: R → R is convex (or "concave up") provided that for all x, y ∈ R and t ∈ [0, 1] , f(tx + (1 − t)y) ≤ tf(x) + (1 − t)f(y). Equivalently, a line segment between two points on the graph lies above the graph, the region above the graph is convex, etc. I want to know why the word "convex" goes with the inequality in ...Let displaystyle f(x) = frac{6x-3}{x+6} .Find the open intervals on which f is concave up (down). Then determine the x -coordinatesof all inflection points of f . 1.fis concave up on the intervals 2.fis concave down on the intervals 3.The inflection points occur at x =Notes: In the first two, your answer should eitherbe a single interval, such as (0,1), a comma separated list ofintervals, such ...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.Find function concavity intervlas step-by-step. function-concavity-calculator. he. פוסטים קשורים בבלוג של Symbolab. Functions. A function basically relates an input to an output, …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 ...Share a link to this widget: More. Embed this widget »Follow these steps: (a) Find the intervals of increase and decrease and identify local maxima and minima. (b) Find the intervals where the function is concave up/down. Identify any inflection p; Find the intervals on which f is concave up or down, the points of inflection, the critical points, and the local minima and maxima of f(x) = \frac{1 ...Positive Positive Increasing Concave up Positive Negative Increasing Concave down Negative Positive Decreasing Concave up Negative Negative Decreasing Concave down Table 4.6What Derivatives Tell Us about Graphs Figure 4.37 Consider a twice-differentiable function f over an open intervalI.Iff′(x)>0for allx∈I, the function is increasing overI.Consider the parametric curve defined by x (t) = t2 − 2t and y (t) = t + 1 t for t > 0. (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 ...The Function Calculator is a tool used to analyze functions. It can find the following for a function: parity, domain, range, intercepts, critical points, intervals of increase/decrease, local and global extrema, concavity intervals, inflection points, derivative, integral, asymptotes, and limit. The calculator will also plot the function's graph.2.6: Second Derivative and Concavity Second Derivative and Concavity. 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.Explanation: For the following exercises, determine a. intervals where f is increasing or decreasing, b. local minima and maxima off, c. intervals where f is concave up and concave down, and d. the 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 ...245) The economy is picking up speed. Here f f is a measure of the economy, such as GDP. Answer: For the following exercises, consider a third-degree polynomial f(x), f ( x), which has the properties f′ (1)=0,f′ (3)=0. Determine whether the following statements are true or false. Justify your answer.Calculus. Find the Concavity f (x)=x^3-12x+3. f (x) = x3 − 12x + 3 f ( x) = x 3 - 12 x + 3. Find the x x values where the second derivative is equal to 0 0. Tap for more steps... x = 0 x = 0. 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 ...Write your solution to each part in the space provided for that part. 6. Consider the curve given by the equation 6xy y. = 2 + . dy y. (a) Show that 2 . dx = y2 − 2x. (b) Find the coordinates of a point on the curve at which the line tangent to the curve is horizontal, or explain why no such point exists.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: let f (x)=10-6x^2+2x^3 find concave up and down intervals. let f ( x) = 1 0 - 6 x ^ 2 + 2 x ^ 3 find concave up and down intervals. There are 4 steps to solve this one. Powered by Chegg AI. Share Share.So our task is to find where a curve goes from concave upward to concave downward (or vice versa). inflection points. Calculus. Derivatives help us! The ...Derivatives can help! The derivative of a function gives the slope. When the slope continually increases, the function is concave upward. When the slope continually decreases, the function is concave downward. Taking the second derivative actually tells us if the slope continually increases or decreases. When the second derivative is positive ...Find any intervals of concave up/down and points of inflection. Clearly label each of these. (please show steps as I am quite stuck finding the correct answer) Question: Find any intervals of concave up/down and points of inflection. Clearly label each of these.Advanced Math questions and answers. (1 point) Please answer the following questions about the function (*) - (x + 12) (0-2) Instruction If you are asked to theid or yuvalues, enter either a number, a list of numbers separated by commas, or None if there aren't any solutions. Use interval notation if you are asked to find an interval or union ...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 ...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.Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Concavity. Save Copy. Log InorSign Up. f x = 1 1 + x 2 1. g(x)=f'(x) 2. g x = d dx f x ...17 Nov 2015 ... To the find the intervals of concavity, we set the second derivative equal to zero. To find the second derivative, we derive f(x), then find ...Answer link. First find the derivative: f' (x)=3x^2+6x+5. Next find the second derivative: f'' (x)=6x+6=6 (x+1). The second derivative changes sign from negative to positive as x increases through the value x=1. Therefore the graph of f is concave down when x<1, concave up when x>1, and has an inflection point when x=1.Given a curve y=f(x), a point of inflection is a point at which the second derivative equals to zero, f''(x)=0, and across which the second derivative changes sign. This means that the curve changes concavity across a point of inflection; either from concave-up to concave-down or concave-down to concave-up. In this section we learn how to find points of inflection and how to to study the sign ...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 ...If f ′′(x) < 0 f ′ ′ ( x) < 0 for all x ∈ I x ∈ I, then f f is concave down over I I. We conclude that we can determine the concavity of a function f f by looking at the second derivative of f f. In addition, we observe that a function f f can switch concavity (Figure 6).The intervals of increasing are x in (-oo,-2)uu(3,+oo) and the interval of decreasing is x in (-2,3). Please see below for the concavities. The function is f(x)=2x^3-3x^2-36x-7 To fd the interval of increasing and decreasing, calculate the first derivative f'(x)=6x^2-6x-36 To find the critical points, let f'(x)=0 6x^2-6x-36=0 =>, x^2-x-6=0 =>, (x-3)(x+2)=0 The critical points are {(x=3),(x=-2 ...Step 1: Finding the second derivative. To find the inflection points of f , we need to use f ″ : f ′ ( x) = 5 x 4 + 20 3 x 3 f ″ ( x) = 20 x 3 + 20 x 2 = 20 x 2 ( x + 1) Step 2: Finding all candidates. Similar to critical points, these are points where f ″ ( x) = 0 or where f ″ ( x) is undefined. f ″ is zero at x = 0 and x = − 1 ...The intervals of increasing are x in (-oo,-2)uu(3,+oo) and the interval of decreasing is x in (-2,3). Please see below for the concavities. The function is f(x)=2x^3-3x^2-36x-7 To fd the interval of increasing and decreasing, calculate the first derivative f'(x)=6x^2-6x-36 To find the critical points, let f'(x)=0 6x^2-6x-36=0 =>, x^2-x-6=0 =>, (x-3)(x+2)=0 The critical points are {(x=3),(x=-2 ...Video Transcript. Consider the parametric curve 𝑥 is equal to one plus the sec of 𝜃 and 𝑦 is equal to one plus the tan of 𝜃. Determine whether this curve is concave up, down, or neither at 𝜃 is equal to 𝜋 by six. The question gives us a curve defined by a pair of parametric equations 𝑥 is some function of 𝜃 and 𝑦 is ...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 ...Find the Intervals where the Function is Concave Up and Down f(x) = 14/(x^2 + 12)If you enjoyed this video please consider liking, sharing, and subscribing.U...Now that we know the second derivative, we can calculate the points of inflection to determine the intervals for concavity: f ''(x) = 0 = 6 −2x. 2x = 6. x = 3. We only have one inflection point, so we just need to determine if the function is concave up or down on either side of the function: f ''(2) = 6 −2(2)Free Functions Concavity Calculator - find function concavity intervlas step-by-stepQuestion: 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 ...Concave down = slope of function decreasing = negative second derivative. Concave up = slope of function increasing = positive second derivative. The first problem you would do best to sketch out, starting at negative infinity and going to positive infinity. This would demonstrate that the local minima are -8 and 8 and the local maximum is at 0.Determining whether a function is concave up or down can be accomplished algebraically by following these steps: Step 1: Find the second derivative. Step 2: Set the second derivative equal to 0 ...... concavity goes from concave up to down, or concave down to up. ... I looked at it on my graphing calculator ... determine the concavity at specific ...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.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.Plug an x-value from each interval into the second derivative: f(-2) < 0, so the first interval is concave down, while f(0) > 0, so the second interval is concave up. This agrees with the graph. 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. And 30x + 4 is negative up to x = −4/30 = −2/15, positive from there onwards. Using the second derivative test, f(x) is concave up when x<-1/2 and concave down when x> -1/2. Concavity has to do with the second derivative of a function. A function is concave up for the intervals where d^2/dx^2f(x)>0. A function is concave down for the intervals where d^2/dx^2f(x)<0. First, let's solve for the second derivative of the function.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.Analyze concavity. g ( x) = − 5 x 4 + 4 x 3 − 20 x − 20 . On which intervals is the graph of g concave up? Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone ...Calculus. Calculus questions and answers. Consider the following function. f (x) = (3 − x)e−x (a) Find the intervals of increase or decrease. (Enter your answers using interval notation.) increasing decreasing (b) Find the intervals of concavity. (Enter your answers using interval notation. If an answer does not exist, enter.Find function concavity intervlas step-by-step. function-concavity-calculator. he. פוסטים קשורים בבלוג של Symbolab. Functions. A function basically relates an input to an output, there's an input, a relationship and an output. For every input...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 ... If f '' > 0 on an interval, then f is concave up on that interval. If f '' 0 on an interval, then f is concave down on that interval. If f '' changes sign (from positive to negative, or from negative to positive) at some point x = c, then there is an Inflection Point located at x = c on the graph. The above image shows an Inflection Point. Question: For the following exercises, determine a. intervals where ff is increasing or decreasing, b. local minima and maxima of f,f, c. intervals where ff is concave up and concave down, and d. the inflection points of f. 226. f(x)=x^4-6x^3 228. f(x)=x+x^2-x^3 For the following exercises, determine a. intervals where ff is increasing or decreasing, b. local minima
Free functions calculator - explore function domain, range, intercepts, extreme points and asymptotes step-by-step. Lethal performance and dyno inc
The graph is concave down when the second derivative is negative and concave up when the second derivative is positive. Concave up on since is positive. Concave down on since is negative. Concave up on since is positive. Step 9Expert-verified. Use the Concavity Theorem to determine where the given function is concave up and where it is concave down. Also find all inflection points. q(x)= 3x3+2x+8 Concave down for all x; no inflection points Concave up for all k; no inflection points Concave up on (−∞,0), concave down on (0,∞); inflection point (0,8) Concave up ...Using the second derivative test, f(x) is concave up when x<-1/2 and concave down when x> -1/2. Concavity has to do with the second derivative of a function. A function is concave up for the intervals where d^2/dx^2f(x)>0. A function is concave down for the intervals where d^2/dx^2f(x)<0. First, let's solve for the second derivative of the …Part A (AB or BC): Graphing Calculator Required. 0 ≤ t ≤ 12, where R(t) is measured in vehicles per hour and t is the number of hours since 7:00 a.m. (t = 0). Values of R(t) for selected values of t are given in the table above. Use the data in the table to approximate Rʹ(5). Show the computations that lead to your answer.Find the inflection points and intervals of concavity up and down of. f(x) = 3x2 − 9x + 6 f ( x) = 3 x 2 − 9 x + 6. First, the second derivative is just f′′(x) = 6 f ″ ( x) = 6. Solution: Since this is never zero, there are not points of inflection. And the value of f′′ f ″ is always 6 6, so is always > 0 > 0 , so the curve is ...Note that at stationary points of the expression, the curve is neither concave up nor concave down. In this case, 0 is a member of neither of the regions: In[5]:= Out[5]= To test that 0 is the only point where the second derivative is 0, use Resolve: In[6]:= Out[6]=Here's the best way to solve it. For the following exercises, determine a intervals where f is increasing or decreasing, b. local minima and maxima of f. C. intervals where f is concave up and concave down, and d. the inflection points of f. 239) f (x) = {v*+ 1, x> 0 240. f (x) = x+0 For the following exercises, interpret the sentences in ...Find the Concavity x^4. x4 x 4. Write x4 x 4 as a function. f (x) = x4 f ( x) = x 4. Find the x x values where the second derivative is equal to 0 0. Tap for more steps... x = 0 x = 0. 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 expression undefined.Find the Intervals where the Function is Concave Up and Down f(x) = 14/(x^2 + 12)If you enjoyed this video please consider liking, sharing, and subscribing.U...To calculate how much you can afford, you need your gross monthly income, monthly debts, down payment amount, your home state, credit rating and loan type. By clicking "TRY IT", I ...Calculus. Find the Concavity f (x)=x^4-4x^3+2. f(x) = x4 - 4x3 + 2. Find the x values where the second derivative is equal to 0. Tap for more steps... x = 0, 2. 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 expression undefined.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….Answer link. First find the derivative: f' (x)=3x^2+6x+5. Next find the second derivative: f'' (x)=6x+6=6 (x+1). The second derivative changes sign from negative to positive as x increases through the value x=1. Therefore the graph of f is concave down when x<1, concave up when x>1, and has an inflection point when x=1..
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