Find the relative extrema of the function and classify each as a maximum or minimum. (Use either the first or second derivative test). f(x) = x 3 - 12x - 4
Find the relative extrema of the function and classify each as a maximum or minimum. (Use either the first or second derivative test). f(x) = x 3 - 12x - 4
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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![### Finding Relative Extrema
To determine the relative extrema of the function and classify each as a maximum or minimum, follow these instructions. (You may use either the first or second derivative test.)
Given function:
\[ f(x) = x^3 - 12x - 4 \]
1. **Find the first derivative, \( f'(x) \)**:
Differentiate the function with respect to \( x \) to find the first derivative.
2. **Find critical points**:
Set the first derivative equal to zero and solve for \( x \):
\( f'(x) = 0 \).
3. **Classify the critical points**:
Utilize either the first derivative test or the second derivative test:
- **First Derivative Test**: Analyze the sign changes of \( f'(x) \) around the critical points.
- **Second Derivative Test**: Find the second derivative \( f''(x) \). Determine the concavity at each critical point by evaluating \( f''(x) \).
Make sure to classify the extrema appropriately as either a maximum or minimum based on the results of these tests.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F670cec44-172f-4f6c-8b5b-add8e60675be%2Fb62f7bc0-212b-4216-8407-2df75fad3ff5%2Fxj65f6f.png&w=3840&q=75)
Transcribed Image Text:### Finding Relative Extrema
To determine the relative extrema of the function and classify each as a maximum or minimum, follow these instructions. (You may use either the first or second derivative test.)
Given function:
\[ f(x) = x^3 - 12x - 4 \]
1. **Find the first derivative, \( f'(x) \)**:
Differentiate the function with respect to \( x \) to find the first derivative.
2. **Find critical points**:
Set the first derivative equal to zero and solve for \( x \):
\( f'(x) = 0 \).
3. **Classify the critical points**:
Utilize either the first derivative test or the second derivative test:
- **First Derivative Test**: Analyze the sign changes of \( f'(x) \) around the critical points.
- **Second Derivative Test**: Find the second derivative \( f''(x) \). Determine the concavity at each critical point by evaluating \( f''(x) \).
Make sure to classify the extrema appropriately as either a maximum or minimum based on the results of these tests.
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