Express the relationship between a small change in x and the corresponding change in y in the form dy = f'(x) dx . y = 9 - S O dy = 2. dx dy 2x x2 dx O dy = dx x2 2. dy = dx 2x x2 by
Express the relationship between a small change in x and the corresponding change in y in the form dy = f'(x) dx . y = 9 - S O dy = 2. dx dy 2x x2 dx O dy = dx x2 2. dy = dx 2x x2 by
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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how do i sole. i am getting confused or maybe i am tired of the millions of calculs assignments i get weekly. either way please help me
![### Analyzing Differential Equations on an Educational Platform
#### Problem Statement:
**Objective:** Express the relationship between a small change in \( x \) and the corresponding change in \( y \) in the form \( dy = f(x) \, dx \).
Given the equation:
\[ y = 9 \sqrt{x} - \frac{8}{x} \]
#### Choices:
1. \[
\circ \quad dy = \left( \frac{9 \sqrt{x}}{2} - \frac{8}{x^2} \right) dx
\]
2. \[
\circ \quad dy = \left( \frac{9}{2 \sqrt{x}} - \frac{8}{x^2} \right) dx
\]
3. \[
\circ \quad dy = \left( \frac{9 \sqrt{x}}{2} - \frac{8}{x^2} \right) dx
\]
4. \[
\circ \quad dy = \left( \frac{9}{2 \sqrt{x}} - \frac{8}{x^2} \right) dx
\]
### Steps to Derive \( dy \):
1. **Differentiate \( y \) with respect to \( x \):**
Given:
\[
y = 9 \sqrt{x} - \frac{8}{x}
\]
2. **Apply the Differentiation Rules:**
- The derivative of \( 9 \sqrt{x} \):
\[
9 \sqrt{x} = 9x^{\frac{1}{2}}
\]
\[
\frac{d}{dx} (9x^{\frac{1}{2}}) = 9 \cdot \frac{1}{2} x^{\frac{-1}{2}} = \frac{9}{2} x^{-\frac{1}{2}} = \frac{9}{2 \sqrt{x}}
\]
- The derivative of \( - \frac{8}{x} \):
\[
-\frac{8}{x} = -8x^{-1}
\]
\[
\frac{d}{dx} (-8x^{-1}) = -8 \cdot (-1) x^{-2} = \frac{8}{x^2}
\](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F670cec44-172f-4f6c-8b5b-add8e60675be%2F01d575d5-ba52-4089-8d38-fa7831840718%2Frhlrmyn.png&w=3840&q=75)
Transcribed Image Text:### Analyzing Differential Equations on an Educational Platform
#### Problem Statement:
**Objective:** Express the relationship between a small change in \( x \) and the corresponding change in \( y \) in the form \( dy = f(x) \, dx \).
Given the equation:
\[ y = 9 \sqrt{x} - \frac{8}{x} \]
#### Choices:
1. \[
\circ \quad dy = \left( \frac{9 \sqrt{x}}{2} - \frac{8}{x^2} \right) dx
\]
2. \[
\circ \quad dy = \left( \frac{9}{2 \sqrt{x}} - \frac{8}{x^2} \right) dx
\]
3. \[
\circ \quad dy = \left( \frac{9 \sqrt{x}}{2} - \frac{8}{x^2} \right) dx
\]
4. \[
\circ \quad dy = \left( \frac{9}{2 \sqrt{x}} - \frac{8}{x^2} \right) dx
\]
### Steps to Derive \( dy \):
1. **Differentiate \( y \) with respect to \( x \):**
Given:
\[
y = 9 \sqrt{x} - \frac{8}{x}
\]
2. **Apply the Differentiation Rules:**
- The derivative of \( 9 \sqrt{x} \):
\[
9 \sqrt{x} = 9x^{\frac{1}{2}}
\]
\[
\frac{d}{dx} (9x^{\frac{1}{2}}) = 9 \cdot \frac{1}{2} x^{\frac{-1}{2}} = \frac{9}{2} x^{-\frac{1}{2}} = \frac{9}{2 \sqrt{x}}
\]
- The derivative of \( - \frac{8}{x} \):
\[
-\frac{8}{x} = -8x^{-1}
\]
\[
\frac{d}{dx} (-8x^{-1}) = -8 \cdot (-1) x^{-2} = \frac{8}{x^2}
\
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