
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Question
![**Problem Statement:**
If \( f(6) = 7 \) and \( f'(6) = 4 \), estimate \( f(5.8) \).
**Solution:**
To estimate \( f(5.8) \), we use the linear approximation formula:
\[
f(x) \approx f(a) + f'(a)(x - a)
\]
Given:
- \( a = 6 \)
- \( f(6) = 7 \)
- \( f'(6) = 4 \)
- \( x = 5.8 \)
Substitute the values into the formula:
\[
f(5.8) \approx 7 + 4(5.8 - 6)
\]
Calculate the difference:
\[
5.8 - 6 = -0.2
\]
Then calculate:
\[
f(5.8) \approx 7 + 4(-0.2) = 7 - 0.8 = 6.2
\]
**Estimate:**
\( f(5.8) \approx 6.2 \)](https://content.bartleby.com/qna-images/question/e4962ae7-1cb2-4276-8f6a-b9f851b67289/536c4c5d-7aff-4390-a4e3-2d5d35fa5d34/g3rnj1r_thumbnail.png)
Transcribed Image Text:**Problem Statement:**
If \( f(6) = 7 \) and \( f'(6) = 4 \), estimate \( f(5.8) \).
**Solution:**
To estimate \( f(5.8) \), we use the linear approximation formula:
\[
f(x) \approx f(a) + f'(a)(x - a)
\]
Given:
- \( a = 6 \)
- \( f(6) = 7 \)
- \( f'(6) = 4 \)
- \( x = 5.8 \)
Substitute the values into the formula:
\[
f(5.8) \approx 7 + 4(5.8 - 6)
\]
Calculate the difference:
\[
5.8 - 6 = -0.2
\]
Then calculate:
\[
f(5.8) \approx 7 + 4(-0.2) = 7 - 0.8 = 6.2
\]
**Estimate:**
\( f(5.8) \approx 6.2 \)
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