Knowee
Questions
Features
Study Tools

Find all relative extrema of the function of the following functiona. 𝑓(𝑥) = 2𝑥3 − 3𝑥2 − 36𝑥 + 14 b

Question

Find all relative extrema of the function of the following functiona. 𝑓(𝑥) = 2𝑥3 − 3𝑥2 − 36𝑥 + 14 b

🧐 Not the exact question you are looking for?Go ask a question

Solution

To find the relative extrema of the function f(x) = 2x³ - 3x² - 36x + 14, we first need to find the derivative of the function.

Step 1: Find the derivative of the function The derivative of the function f(x) = 2x³ - 3x² - 36x + 14 is f'(x) = 6x² - 6x - 36.

Step 2: Set the derivative equal to zero and solve for x Setting the derivative equal to zero gives us the critical points of the function.

6x² - 6x - 36 = 0 Divide the entire equation by 6 to simplify: x² - x - 6 = 0 This can be factored to: (x - 3)(x + 2) = 0 Setting each factor equal to zero gives the solutions x = 3 and x = -2.

Step 3: Use the second derivative test to classify each critical point as a local minimum, local maximum, or neither. The second derivative of the function is f''(x) = 12x - 6.

For x = 3, f''(3) = 12*3 - 6 = 30, which is greater than zero, so x = 3 is a local minimum.

For x = -2, f''(-2) = 12*(-2) - 6 = -30, which is less than zero, so x = -2 is a local maximum.

So, the function f(x) = 2x³ - 3x² - 36x + 14 has a local maximum at x = -2 and a local minimum at x = 3.

This problem has been solved

Similar Questions

Find the open intervals on which the function 𝑓 is increasing or decreasing, and find the 𝑥-values of all relative extrema (turning points).𝑓(𝑥)=18⋅𝑥−𝑥3

What is the absolute maximum value of the function f (x) = −x2 + 3x − 2 on the interval[1, 3]?A. 0B. 14C. −14D. −2E. 2

Find all relative extrema of the function. Use the second derivative test where applicable. (If an answer does not exist, enter DNE.)f(x) = x4 − 8x3 + 1

The function 𝑓  is defined by 𝑓(𝑥)=𝑥𝑥+4 𝑓(𝑥)=cos⁡𝑥. What point(s) (𝑥,𝑦)  on the graph of 𝑓 have the property that the line tangent to 𝑓 at (𝑥,𝑦) has slope 14 −22?

Function f(x)=2x3−9x2+12x+29𝑓𝑥=2𝑥3-9𝑥2+12𝑥+29 is decreasing when x∈(a, b)𝑥∈𝑎, 𝑏 then find value of a+b𝑎+𝑏.

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.