5.4
The Slope Formula
Slope is the ratio of the change in y
to the change in x.
y
x
change in the rise
change in the run
Calculate the slope of the line containing the
points (-2, 4) and (-5, -8) two different ways.
Calculate the slope of the line containing the points
(6, 1) and (-4, -3)
This table of values shows a linear relationship.
Calculate the slope.
x -3 0 3 6 9
y 4 4 4 4 4
This table of values shows a linear relationship.
Calculate the slope.
x -3 0 3 6 9
y 8 6 4 2 0
Find the slope of the line described by
4x - 2y = 16
Find the slope of the line described by
-3x - 5y = 30
Find the slope of the line.
Then tell what the slope represents.
Plant Growth
Height (cm)
40
30
20
10
10
20
30
40
50
60
70
Time (days)
Calculate the slope and then tell what the slope means.
Calculate the slope and then tell what the slope means.
(12, 160)
Money Earned ($)
150
100
(4, 80)
50
20
2
4
10
Time Worked (hours)
20
Calculate the slope and then tell what the slope means.
Jars of peanut butter
Peanut Butter
(4860, 9)
10
8
6
4
(1620, 3)
2
2000
Peanuts
4000