3) Suppose that f is a differentiable function with domain [0,5] and f' (3) = 0. True or False: This function must have an extreme value at x = 3. O False O True

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Question 3:**

Suppose that \( f \) is a differentiable function with domain \([0, 5]\) and \( f'(3) = 0 \).

**True or False:**

This function must have an extreme value at \( x = 3 \).

- ○ False
- ○ True

**Explanation:**

This question examines whether having a derivative equal to zero at a certain point necessarily implies that the function has a local maximum or minimum (an extreme value) at that point. Consider the following:

- A function's derivative, \( f'(x) \), at a point equals zero can indicate a local extreme value, but it is not guaranteed. The point could also be an inflection point.
- It's important to verify using additional tests (like the second derivative test) to confirm whether it's an extremum or not.
Transcribed Image Text:**Question 3:** Suppose that \( f \) is a differentiable function with domain \([0, 5]\) and \( f'(3) = 0 \). **True or False:** This function must have an extreme value at \( x = 3 \). - ○ False - ○ True **Explanation:** This question examines whether having a derivative equal to zero at a certain point necessarily implies that the function has a local maximum or minimum (an extreme value) at that point. Consider the following: - A function's derivative, \( f'(x) \), at a point equals zero can indicate a local extreme value, but it is not guaranteed. The point could also be an inflection point. - It's important to verify using additional tests (like the second derivative test) to confirm whether it's an extremum or not.
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