Slope Supplement 2 Find a slope Graphing with

Slope Supplement 2 Find a slope Graphing with Slope

Slope describes the direction of a line.

Why is this needed ? Slope If x 1 x 2, the slope of the line through the distinct points (x 1, Guard against 0 y 1) and (x 2, y 2) is in the denominator

Find the slope between (-3, 6) and (5, 2) y-axis x-axis Rise Run = -4 8 = -1 2

Find the slope between (-3, 6) and (5, 2)

Find the Slope Green (3, 9) Blue (11, 2) Red (5, -2)

Find the slope between (5, 4) and (5, 2). STOP This slope is undefined.

Find the slope between (5, 4) and (5, 2). y-axis x-axis Rise Run = -2 0 = Undefined

Find the slope between (5, 4) and (-3, 4). STOP This slope is zero.

Find the slope between (5, 4) and (-3, 4). y-axis x-axis Rise Run = 0 -8 = Zero

From these results we can see. . . • The slope of a vertical line is undefined. • The slope of a horizontal line is 0.

Graph the line that goes through (1, -3) with y-axis x-axis (1, -3)

Using Slope to Graph • Graph the line that contains (4, 5) and has a slope of 3/2. (8, 11) (6, 8) (4, 5)

Using Slope to Graph • Graph (0, 8) (4, 5) (8, 2)

Slope Worksheet 10 points Find the slope of the lines that contain the following pairs of points. a. (2, 3) and (-4, -5) b. (0, 0) and (2, 3) c. (3, 0) and (7, 4) d. (7, 4) and (3, 0) e. (2, 3) and (2, -5) Sketch a graph of the following lines. 1. y = 4 x – 8 2. y = -3 x + 6 3. 4. 5.