1. CN: Graphing Horizontal and Vertical Lines

2. Horizontal Lines
Horizontal lines have a graph of y = b, where b is a constant.
The value of y stays the SAME for each point along the line (x values change).

3. Directions: Graph and write the equation of the line
Directions: Graph and write the equation of the line. Describe the slope of each.
Graph the points on a coordinate plane and connect the points, find the equation.

4. Ex. 1
(2, -3) (-5, -3) (0, -3) (1, -3) (-2, -3)
The equation is: y = -3

5. Directions: Graph each horizontal equation on the same coordinate plane, label each line. Describe what you see.

6. Example 2
a. y = 3 b. y = -5 c. y = 1

7. Vertical Lines Vertical lines have a graph of
x = a, where a is a constant.
The value of x stays the SAME for each point along the line (y values change).

8. Directions: Graph and write the equation of the line
Directions: Graph and write the equation of the line. Describe the slope of each.
Graph the points on a coordinate plane and connect the points, find the equation.

9. Example 3
(4, 2) (4, -3) (4, 0) (4, 5) (4, -1)
The equation is: x = 4

10. Directions: Graph each vertical equation on the same coordinate plane, label each line. Describe what you see.

11. Example 4
a. x = -3 b. x = 5 c. x = 1