Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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### Evaluating the Limit of a Function from a Graph

**Graph Description**

The graph presented displays the function \( f(x) \). The x-axis ranges from -10 to 10, while the y-axis ranges from -10 to 10 as well. 

Key points to observe in the graph:
1. There is a curve with notable points at:
   - \( (4, 5) \): An open circle indicating that \( f(4) \) is undefined.
   - \( (5, -5) \): A closed circle indicating that \( f(5) = -5 \).

2. The curve approaches the point \( (5, -5) \) from both the left and right sides, suggesting the behavior of the function around \( x = 5 \).

3. From the graph, it is noticeable that as \( x \) approaches 5 from the right side (\( x \to 5^+ \)), the function \( f(x) \) tends to the point where \( y = -5 \).

**Task**

Given the graph of \( f(x) \) shown above, evaluate:
\[ \lim_{{x \to 5^+}} f(x) \]

**Solution**

From the graph, as \( x \) approaches 5 from the right side,
\[ \lim_{{x \to 5^+}} f(x) = -5 \]

*Note:* If the limit did not exist, you would enter ∅.

Use this graph to visually understand how limits work and how to evaluate them based on the behavior of the function near the point of interest. 

**Practice**

Try to determine the following limits based on the same graph:
\[ \lim_{{x \to 4^+}} f(x) \]
\[ \lim_{{x \to 4^-}} f(x) \]
\[ \lim_{{x \to 6}} f(x) \]
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Transcribed Image Text:### Evaluating the Limit of a Function from a Graph **Graph Description** The graph presented displays the function \( f(x) \). The x-axis ranges from -10 to 10, while the y-axis ranges from -10 to 10 as well. Key points to observe in the graph: 1. There is a curve with notable points at: - \( (4, 5) \): An open circle indicating that \( f(4) \) is undefined. - \( (5, -5) \): A closed circle indicating that \( f(5) = -5 \). 2. The curve approaches the point \( (5, -5) \) from both the left and right sides, suggesting the behavior of the function around \( x = 5 \). 3. From the graph, it is noticeable that as \( x \) approaches 5 from the right side (\( x \to 5^+ \)), the function \( f(x) \) tends to the point where \( y = -5 \). **Task** Given the graph of \( f(x) \) shown above, evaluate: \[ \lim_{{x \to 5^+}} f(x) \] **Solution** From the graph, as \( x \) approaches 5 from the right side, \[ \lim_{{x \to 5^+}} f(x) = -5 \] *Note:* If the limit did not exist, you would enter ∅. Use this graph to visually understand how limits work and how to evaluate them based on the behavior of the function near the point of interest. **Practice** Try to determine the following limits based on the same graph: \[ \lim_{{x \to 4^+}} f(x) \] \[ \lim_{{x \to 4^-}} f(x) \] \[ \lim_{{x \to 6}} f(x) \]
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