Graph the function. 3x for x<-1 f(x) = - 3x for x>-1

Algebra and Trigonometry (6th Edition)
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Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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### Piecewise Function Graphing

#### Instructions
**Graph the function.**

\[ f(x) = \begin{cases} 
3x & \text{for } x \leq -1 \\
-3x & \text{for } x \geq -1 
\end{cases} \]

#### Explanation
In this example, you are asked to graph a piecewise function that consists of two linear components. 

#### Graph Description
Below the function definition, a coordinate graph is provided. The x-axis ranges from -10 to +10, and the y-axis ranges from -1 to +9. The graph is a standard Cartesian plane with marks at each integer along both axes.

To graph the given piecewise function:

1. **For \( x \leq -1 \) :** Use the equation \( f(x) = 3x \).
   - Identify and plot points to the left of \( x = -1 \) using \( y = 3x \).
   - For instance, when \( x = -2 \), \( y = 3(-2) = -6 \); and when \( x = -3 \), \( y = 3(-3) = -9 \).
  
2. **For \( x \geq -1 \) :** Use the equation \( f(x) = -3x \).
   - Identify and plot points from \( x = -1 \) towards positive x-values using \( y = -3x \).
   - For instance, when \( x = 0 \), \( y = -3(0) = 0 \); and when \( x = 1 \), \( y = -3(1) = -3 \).

Ensure to depict the behavior change at \( x = -1 \) accurately, reflecting the switch in equations from \( 3x \) to \( -3x \).

Using these steps, you should be able to draw the respective parts of the piecewise function on the Cartesian plane provided.
Transcribed Image Text:### Piecewise Function Graphing #### Instructions **Graph the function.** \[ f(x) = \begin{cases} 3x & \text{for } x \leq -1 \\ -3x & \text{for } x \geq -1 \end{cases} \] #### Explanation In this example, you are asked to graph a piecewise function that consists of two linear components. #### Graph Description Below the function definition, a coordinate graph is provided. The x-axis ranges from -10 to +10, and the y-axis ranges from -1 to +9. The graph is a standard Cartesian plane with marks at each integer along both axes. To graph the given piecewise function: 1. **For \( x \leq -1 \) :** Use the equation \( f(x) = 3x \). - Identify and plot points to the left of \( x = -1 \) using \( y = 3x \). - For instance, when \( x = -2 \), \( y = 3(-2) = -6 \); and when \( x = -3 \), \( y = 3(-3) = -9 \). 2. **For \( x \geq -1 \) :** Use the equation \( f(x) = -3x \). - Identify and plot points from \( x = -1 \) towards positive x-values using \( y = -3x \). - For instance, when \( x = 0 \), \( y = -3(0) = 0 \); and when \( x = 1 \), \( y = -3(1) = -3 \). Ensure to depict the behavior change at \( x = -1 \) accurately, reflecting the switch in equations from \( 3x \) to \( -3x \). Using these steps, you should be able to draw the respective parts of the piecewise function on the Cartesian plane provided.
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