4. Determine the following limit * 1 lim * → 2 *- 2 3- -6- a) -2 b) 0 -4 d) 2 e) Does not exist/undetermined

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter9: Polynomial And Rational Functions
Section9.6: More On Graphing Rational Functions
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### Limit Evaluation Problem

**Problem 4:** Determine the following limit:
\[ \lim_{{x \to 2}} \frac{1}{{x - 2}} \]

**Diagram Explanation:**
The diagram provided is a graph of the function \( f(x) = \frac{1}{{x - 2}} \). The graph shows a vertical asymptote at \( x = 2 \).

- As \( x \) approaches \( 2 \) from the left (\( x \to 2^{-} \)), the function value \( f(x) \) decreases without bound, heading towards negative infinity.
  
- Conversely, as \( x \) approaches \( 2 \) from the right (\( x \to 2^{+} \)), the function value \( f(x) \) increases without bound, heading towards positive infinity.

This behavior indicates that the limit of \( \frac{1}{{x - 2}} \) as \( x \) approaches 2 does not approach a single finite value.

**Options:**

- a) -2
- b) 0
- c) -4
- d) 2
- e) Does not exist/undetermined

### Answer:
The correct choice is:
- **e) Does not exist/undetermined**

The limit does not exist because the function approaches negative infinity from the left and positive infinity from the right as \( x \) approaches 2.
Transcribed Image Text:### Limit Evaluation Problem **Problem 4:** Determine the following limit: \[ \lim_{{x \to 2}} \frac{1}{{x - 2}} \] **Diagram Explanation:** The diagram provided is a graph of the function \( f(x) = \frac{1}{{x - 2}} \). The graph shows a vertical asymptote at \( x = 2 \). - As \( x \) approaches \( 2 \) from the left (\( x \to 2^{-} \)), the function value \( f(x) \) decreases without bound, heading towards negative infinity. - Conversely, as \( x \) approaches \( 2 \) from the right (\( x \to 2^{+} \)), the function value \( f(x) \) increases without bound, heading towards positive infinity. This behavior indicates that the limit of \( \frac{1}{{x - 2}} \) as \( x \) approaches 2 does not approach a single finite value. **Options:** - a) -2 - b) 0 - c) -4 - d) 2 - e) Does not exist/undetermined ### Answer: The correct choice is: - **e) Does not exist/undetermined** The limit does not exist because the function approaches negative infinity from the left and positive infinity from the right as \( x \) approaches 2.
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