Oct 11, 3:54:57 PM What are the features of the function f(x) = 2logg (x + 7) graphed below? 12 11 10 The function f(x) is 9 8 7 6 5 4 2 1 -12-11-10-9-8-76-5-4-3-2-1₁ -2 -3 1 2 3 4 5 6 7 8 9 10 11 12 -8 -9 -10 -11 -12 function with al asymptote of

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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**Title: Understanding the Features of Logarithmic Functions**

**Question:**
What are the features of the function \( f(x) = 2 \log_3 (x + 7) \) graphed below?

**Graph Description:**
The graph displays the function \( f(x) = 2 \log_3 (x + 7) \). The x-axis ranges from approximately -12 to 12, and the y-axis ranges from -4 to 12. The graph shows a logarithmic curve starting from a point near the vertical line at \( x = -7 \), extending upward and to the right. The curve is steepest near \( x = -7 \) and gradually flattens as it moves to the right.

**Key Features:**
- **Vertical Asymptote:** The graph has a vertical asymptote at \( x = -7 \). This is because the logarithmic function is undefined for values of \( x + 7 \leq 0 \).

- **Domain:** The domain of the function is \( x > -7 \).

- **Range:** The range of the function is all real numbers, \( y \in \mathbb{R} \).

- **Behavior:** As \( x \) approaches -7 from the right, the value of the function \( f(x) \) decreases towards negative infinity. As \( x \) increases, the function value \( f(x) \) increases without bound.

- **Transformations:** The function includes a horizontal shift left by 7 units and a vertical stretch by a factor of 2 due to the coefficient in front of the logarithm.

Understanding these features helps in analyzing the behavior of logarithmic functions and their transformations.
Transcribed Image Text:**Title: Understanding the Features of Logarithmic Functions** **Question:** What are the features of the function \( f(x) = 2 \log_3 (x + 7) \) graphed below? **Graph Description:** The graph displays the function \( f(x) = 2 \log_3 (x + 7) \). The x-axis ranges from approximately -12 to 12, and the y-axis ranges from -4 to 12. The graph shows a logarithmic curve starting from a point near the vertical line at \( x = -7 \), extending upward and to the right. The curve is steepest near \( x = -7 \) and gradually flattens as it moves to the right. **Key Features:** - **Vertical Asymptote:** The graph has a vertical asymptote at \( x = -7 \). This is because the logarithmic function is undefined for values of \( x + 7 \leq 0 \). - **Domain:** The domain of the function is \( x > -7 \). - **Range:** The range of the function is all real numbers, \( y \in \mathbb{R} \). - **Behavior:** As \( x \) approaches -7 from the right, the value of the function \( f(x) \) decreases towards negative infinity. As \( x \) increases, the function value \( f(x) \) increases without bound. - **Transformations:** The function includes a horizontal shift left by 7 units and a vertical stretch by a factor of 2 due to the coefficient in front of the logarithm. Understanding these features helps in analyzing the behavior of logarithmic functions and their transformations.
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