CN: Graphing Horizontal and Vertical Lines

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Presentation transcript:

CN: Graphing Horizontal and Vertical Lines

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).

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.

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

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

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

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).

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.

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

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

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