16.) y = -4 -5 -4 -3 -2 -1 -5-4 -3 -2 2 3 4 5 2 -3. -4

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
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Graph the equation.
### Graphing Linear Equations: y = -4 (Example 16)

In this section, we will explore how to graph a horizontal line represented by the equation \( y = -4 \).

#### Step-by-Step Explanation:

1. **Understanding the Equation**:
    - The equation \( y = -4 \) describes a horizontal line where the y-coordinate is constantly -4, regardless of the x-coordinate.

2. **Setting Up the Graph**:
    - We begin by drawing a Cartesian coordinate system. Both axes (x and y) are labeled from -5 to 5.

3. **Plotting the Line**:
    - Since the y-coordinate is fixed at -4 for all points on the line, we will draw a straight horizontal line that passes through \( y = -4 \).

#### Graph Description:
- The graph features a horizontal line that crosses the y-axis at \( -4 \) and extends infinitely in both horizontal directions.
- The x-axis ranges from -5 to 5.
- The y-axis ranges from -5 to 5, clearly showing a distinct line at y = -4 parallel to the x-axis.

#### Visual Representation:
- If you were to look at the graph, you would see that, no matter the x-coordinate, the y-coordinate of the line remains consistently -4. This helps solidify the concept that horizontal lines have a slope of zero.
Transcribed Image Text:### Graphing Linear Equations: y = -4 (Example 16) In this section, we will explore how to graph a horizontal line represented by the equation \( y = -4 \). #### Step-by-Step Explanation: 1. **Understanding the Equation**: - The equation \( y = -4 \) describes a horizontal line where the y-coordinate is constantly -4, regardless of the x-coordinate. 2. **Setting Up the Graph**: - We begin by drawing a Cartesian coordinate system. Both axes (x and y) are labeled from -5 to 5. 3. **Plotting the Line**: - Since the y-coordinate is fixed at -4 for all points on the line, we will draw a straight horizontal line that passes through \( y = -4 \). #### Graph Description: - The graph features a horizontal line that crosses the y-axis at \( -4 \) and extends infinitely in both horizontal directions. - The x-axis ranges from -5 to 5. - The y-axis ranges from -5 to 5, clearly showing a distinct line at y = -4 parallel to the x-axis. #### Visual Representation: - If you were to look at the graph, you would see that, no matter the x-coordinate, the y-coordinate of the line remains consistently -4. This helps solidify the concept that horizontal lines have a slope of zero.
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