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
Problem 28PS
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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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff55a3c76-1247-4f37-a949-646c9eedfff9%2F8b6efb4c-e48c-450a-a3a3-86d3cf19d769%2Fka9mhd6_processed.jpeg&w=3840&q=75)
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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