The graph of f(x) is shown. 9r f(z) = Not dran o cale (a) Find the following limits. L- lim f(x) = K- lim f(x) =

Advanced Engineering Mathematics
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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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### The graph of f(x) is shown.

\[ f(x) = \frac{9x}{\sqrt{x^2 + 5}} \]

![Graph illustration](/path/to/image)

- The graph depicts the function \( f(x) = \frac{9x}{\sqrt{x^2 + 5}} \).
- It is annotated with two dashed red lines, presumably horizontal asymptotes, labeled \( L \) and \( K \).

The graph shows:
  - A curve approaching the x-axis from below as \( x \) decreases without bound (indicative of a horizontal asymptote at \( K \)).
  - The curve crosses the y-axis, indicating the value of \( f(0) \).
  - As \( x \) increases, the curve approaches another horizontal line, \( L \).

#### (a) Find the following limits.
\[ L = \lim_{{x \to +\infty}} f(x) = \boxed{} \]
\[ K = \lim_{{x \to -\infty}} f(x) = \boxed{} \]

#### (b) Determine \( x_1 \) and \( x_2 \) in terms of \( \varepsilon \).
\[ x_1 = \boxed{} \]
\[ x_2 = \boxed{} \]

#### (c) Determine \( M \), where \( M > 0 \), such that \( |f(x) - L| < \varepsilon \) for \( x > M \).
\[ M = \boxed{} \]

#### (d) Determine \( N \), where \( N < 0 \), such that \( |f(x) - K| < \varepsilon \) for \( x < N \).
\[ N = \boxed{} \]

### Explanation of the Graph

- **Function:** The function \( f(x) = \frac{9x}{\sqrt{x^2 + 5}} \) is illustrated by the curve.
- **Asymptotes:** The red dashed lines delineate horizontal asymptotes. The function approaches these lines as \( x \to \pm \infty \).
- **Plot Details:** The curve approximates these horizontal lines but never actually intersects them.

### Instructions for Students

- **Limits:** Evaluate the horizontal limits by analyzing the behavior of \( f(x) \) as \( x \) approaches positive and negative infinity.
-
Transcribed Image Text:### The graph of f(x) is shown. \[ f(x) = \frac{9x}{\sqrt{x^2 + 5}} \] ![Graph illustration](/path/to/image) - The graph depicts the function \( f(x) = \frac{9x}{\sqrt{x^2 + 5}} \). - It is annotated with two dashed red lines, presumably horizontal asymptotes, labeled \( L \) and \( K \). The graph shows: - A curve approaching the x-axis from below as \( x \) decreases without bound (indicative of a horizontal asymptote at \( K \)). - The curve crosses the y-axis, indicating the value of \( f(0) \). - As \( x \) increases, the curve approaches another horizontal line, \( L \). #### (a) Find the following limits. \[ L = \lim_{{x \to +\infty}} f(x) = \boxed{} \] \[ K = \lim_{{x \to -\infty}} f(x) = \boxed{} \] #### (b) Determine \( x_1 \) and \( x_2 \) in terms of \( \varepsilon \). \[ x_1 = \boxed{} \] \[ x_2 = \boxed{} \] #### (c) Determine \( M \), where \( M > 0 \), such that \( |f(x) - L| < \varepsilon \) for \( x > M \). \[ M = \boxed{} \] #### (d) Determine \( N \), where \( N < 0 \), such that \( |f(x) - K| < \varepsilon \) for \( x < N \). \[ N = \boxed{} \] ### Explanation of the Graph - **Function:** The function \( f(x) = \frac{9x}{\sqrt{x^2 + 5}} \) is illustrated by the curve. - **Asymptotes:** The red dashed lines delineate horizontal asymptotes. The function approaches these lines as \( x \to \pm \infty \). - **Plot Details:** The curve approximates these horizontal lines but never actually intersects them. ### Instructions for Students - **Limits:** Evaluate the horizontal limits by analyzing the behavior of \( f(x) \) as \( x \) approaches positive and negative infinity. -
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