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...
Related questions
Topic Video
Question
![### Transcription for Educational Purposes
**Task: Estimation Using Differentials**
**b.** Use the differential you've just calculated to estimate the value of \(\sqrt{9.2}\).
### Explanation
This task involves using differentials—a concept from calculus—to estimate the square root of 9.2. Differentials provide an approximation method based on linear approximations of functions. Here's a step-by-step approach typically used:
1. **Identify the Function:** Here the function of interest is \(f(x) = \sqrt{x}\).
2. **Find the Derivative:** The derivative, \(f'(x)\), of \(f(x) = \sqrt{x}\) is \(f'(x) = \frac{1}{2\sqrt{x}}\).
3. **Select a Point \(a\):** Choose a point \(a\) close to 9.2 where the square root is easy to calculate, typically \(a = 9\).
4. **Calculate \(f(a)\) and \(f'(a)\):**
\[
f(9) = \sqrt{9} = 3
\]
\[
f'(9) = \frac{1}{2 \times 3} = \frac{1}{6}
\]
5. **Determine the Change, \(dx\):** The difference between 9.2 and 9, which is \(dx = 9.2 - 9 = 0.2\).
6. **Compute the Differential:** Use the formula \(dy = f'(a) \cdot dx\):
\[
dy = \frac{1}{6} \times 0.2 = \frac{0.2}{6} \approx 0.0333
\]
7. **Estimate the Value:**
\[
\sqrt{9.2} \approx f(a) + dy = 3 + 0.0333 = 3.0333
\]
This is a linear approximation and serves as an estimate for \(\sqrt{9.2}\).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbb452165-c266-4e38-a084-c02ba91498e4%2F164c8f51-4aab-4913-984b-67c219ca805a%2Fq2f39f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Transcription for Educational Purposes
**Task: Estimation Using Differentials**
**b.** Use the differential you've just calculated to estimate the value of \(\sqrt{9.2}\).
### Explanation
This task involves using differentials—a concept from calculus—to estimate the square root of 9.2. Differentials provide an approximation method based on linear approximations of functions. Here's a step-by-step approach typically used:
1. **Identify the Function:** Here the function of interest is \(f(x) = \sqrt{x}\).
2. **Find the Derivative:** The derivative, \(f'(x)\), of \(f(x) = \sqrt{x}\) is \(f'(x) = \frac{1}{2\sqrt{x}}\).
3. **Select a Point \(a\):** Choose a point \(a\) close to 9.2 where the square root is easy to calculate, typically \(a = 9\).
4. **Calculate \(f(a)\) and \(f'(a)\):**
\[
f(9) = \sqrt{9} = 3
\]
\[
f'(9) = \frac{1}{2 \times 3} = \frac{1}{6}
\]
5. **Determine the Change, \(dx\):** The difference between 9.2 and 9, which is \(dx = 9.2 - 9 = 0.2\).
6. **Compute the Differential:** Use the formula \(dy = f'(a) \cdot dx\):
\[
dy = \frac{1}{6} \times 0.2 = \frac{0.2}{6} \approx 0.0333
\]
7. **Estimate the Value:**
\[
\sqrt{9.2} \approx f(a) + dy = 3 + 0.0333 = 3.0333
\]
This is a linear approximation and serves as an estimate for \(\sqrt{9.2}\).

Transcribed Image Text:**Problem Statement:**
1. Given \( y = \sqrt{x - 4} \).
a. Evaluate \( dy \) when \( x = 13 \) and \( dx = 0.2 \).
**Explanation:**
To solve this problem, one would typically use differentiation to find \( dy \) in terms of \( dx \). The function \( y = \sqrt{x - 4} \) suggests finding the derivative to determine how changes in \( x \) affect \( y \).
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.Recommended textbooks for you

Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning

Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON

Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON

Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning

Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON

Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON

Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman


Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning