Which graph best represent the function f. (2, ifx>-3 f(x) = 1-2, if x <-3

Algebra and Trigonometry (6th Edition)
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Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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I need help with 1& 2 pl

**Title: Understanding Piecewise Functions**

**Introduction:**
This section explores the concept of piecewise functions through a specific example.

**Function Definition:**
The function \( f(x) \) is defined as a piecewise function:

\[ 
f(x) = 
\begin{cases} 
2, & \text{if } x > -3 \\
-2, & \text{if } x \leq -3 
\end{cases}
\]

**Graph Explanation:**

The accompanying graph is a coordinate plane with both x and y axes ranging from -10 to 10.

- **For \( x > -3 \):** The function \( f(x) \) evaluates to 2. This is represented by a horizontal line at \( y = 2 \) for all \( x \) greater than -3. This portion of the graph will be an open circle at \( x = -3 \) on the line \( y = 2 \), extending to the right.

- **For \( x \leq -3 \):** The function \( f(x) \) evaluates to -2. This is represented by a horizontal line at \( y = -2 \) for all \( x \) less than or equal to -3. This portion will have a closed circle at \( x = -3 \) on the line \( y = -2 \), extending to the left.

The graph visually distinguishes the two conditions of the piecewise function by connecting the appropriate regions on the coordinate grid. Where the two function values change at \( x = -3 \), you'll see the distinct use of open and closed circles to indicate whether the endpoint is included in a given section of the function.
Transcribed Image Text:**Title: Understanding Piecewise Functions** **Introduction:** This section explores the concept of piecewise functions through a specific example. **Function Definition:** The function \( f(x) \) is defined as a piecewise function: \[ f(x) = \begin{cases} 2, & \text{if } x > -3 \\ -2, & \text{if } x \leq -3 \end{cases} \] **Graph Explanation:** The accompanying graph is a coordinate plane with both x and y axes ranging from -10 to 10. - **For \( x > -3 \):** The function \( f(x) \) evaluates to 2. This is represented by a horizontal line at \( y = 2 \) for all \( x \) greater than -3. This portion of the graph will be an open circle at \( x = -3 \) on the line \( y = 2 \), extending to the right. - **For \( x \leq -3 \):** The function \( f(x) \) evaluates to -2. This is represented by a horizontal line at \( y = -2 \) for all \( x \) less than or equal to -3. This portion will have a closed circle at \( x = -3 \) on the line \( y = -2 \), extending to the left. The graph visually distinguishes the two conditions of the piecewise function by connecting the appropriate regions on the coordinate grid. Where the two function values change at \( x = -3 \), you'll see the distinct use of open and closed circles to indicate whether the endpoint is included in a given section of the function.
Evaluate the function \( f \) at the given value.

\[ 
f(x) = 
\begin{cases} 
6x + 1 & \text{if } x < 3 \\
3x & \text{if } 3 \leq x \leq 7 \\
3 - 9x & \text{if } x > 7 
\end{cases}
\]

Find \( f(3) \).
Transcribed Image Text:Evaluate the function \( f \) at the given value. \[ f(x) = \begin{cases} 6x + 1 & \text{if } x < 3 \\ 3x & \text{if } 3 \leq x \leq 7 \\ 3 - 9x & \text{if } x > 7 \end{cases} \] Find \( f(3) \).
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