Consider the following. f(x) = 4x x+5 Use a computer algebra system to find the derivative of the function. Then use the utility to graph the function and its derivative on the same set of coordinate axes. y 2- 07 -1- -2 0.5 O 3¹¹f'(x) 3 1 15 X f(x) y Of approaches ∞ when f' is zero. Of approaches -√2 when f' is zero. O f' is never zero. 2- 0 -1 Describe the behavior of the function when the derivative is zero. O f approaches √2 when f' is zero. --2 1 2 f(x) 3 f'(x) 2- f(x) f'(x) K f 0 0 1 2 3 4 5 0.5 1 1.5 2 3 4 5 f'(x) f(x) 2.5 3

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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### Consider the following function:

\[ f(x) = \frac{4x}{\sqrt{x+5}} \]

Use a computer algebra system to find the derivative of the function. Then use the utility to graph the function and its derivative on the same set of coordinate axes.

#### Graph Descriptions:

1. **Top Left Graph:**
   - **Axes**: \( x \) from -1 to 3, \( y \) from -3 to 3.
   - **Curves**:
     - The function \( f(x) \) is graphed as a curve, showing variation along the \( x \)-axis.
     - The derivative \( f'(x) \) is also plotted, showing zero crossings near \( x = 0.5 \).

2. **Top Right Graph:**
   - **Axes**: \( x \) from 0 to 6, \( y \) from -3 to 3.
   - **Curves**:
     - Function \( f(x) \) and its derivative \( f'(x) \) are shown, illustrating changes in slope after \( x = 3 \).

3. **Bottom Left Graph:**
   - **Axes**: \( x \) from 1 to 6, \( y \) from -3 to 3.
   - **Curves**:
     - Both \( f(x) \) and \( f'(x) \) are plotted, indicating behavior as \( x \) increases beyond 4.

4. **Bottom Right Graph:**
   - **Axes**: \( x \) from 0 to 3, \( y \) from -3 to 3.
   - **Curves**:
     - Function \( f(x) \), along with \( f'(x) \), shows a more detailed view of the initial changes and behavior near \( x = 1 \).

### Describe the behavior of the function when the derivative is zero.

- \( f \) approaches \(\sqrt{2}\) when \( f' \) is zero.
- \( f \) approaches \(\infty\) when \( f' \) is zero.
- \( f \) approaches \(-\sqrt{2}\) when \( f' \) is zero.
- \( f' \) is never zero.

\[ \circ \] \( f \) approaches \(\sqrt{2}\) when \(
Transcribed Image Text:### Consider the following function: \[ f(x) = \frac{4x}{\sqrt{x+5}} \] Use a computer algebra system to find the derivative of the function. Then use the utility to graph the function and its derivative on the same set of coordinate axes. #### Graph Descriptions: 1. **Top Left Graph:** - **Axes**: \( x \) from -1 to 3, \( y \) from -3 to 3. - **Curves**: - The function \( f(x) \) is graphed as a curve, showing variation along the \( x \)-axis. - The derivative \( f'(x) \) is also plotted, showing zero crossings near \( x = 0.5 \). 2. **Top Right Graph:** - **Axes**: \( x \) from 0 to 6, \( y \) from -3 to 3. - **Curves**: - Function \( f(x) \) and its derivative \( f'(x) \) are shown, illustrating changes in slope after \( x = 3 \). 3. **Bottom Left Graph:** - **Axes**: \( x \) from 1 to 6, \( y \) from -3 to 3. - **Curves**: - Both \( f(x) \) and \( f'(x) \) are plotted, indicating behavior as \( x \) increases beyond 4. 4. **Bottom Right Graph:** - **Axes**: \( x \) from 0 to 3, \( y \) from -3 to 3. - **Curves**: - Function \( f(x) \), along with \( f'(x) \), shows a more detailed view of the initial changes and behavior near \( x = 1 \). ### Describe the behavior of the function when the derivative is zero. - \( f \) approaches \(\sqrt{2}\) when \( f' \) is zero. - \( f \) approaches \(\infty\) when \( f' \) is zero. - \( f \) approaches \(-\sqrt{2}\) when \( f' \) is zero. - \( f' \) is never zero. \[ \circ \] \( f \) approaches \(\sqrt{2}\) when \(
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Step 1: We write what we have to find out and given

We have a function. Then we have to find derivative of that function and draw the graph.

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