Slope Formula Quizlet

Find the slope  between the points (-1, 1) and (-2, -3). slope24.gif (1031 bytes)
slope formula:  slope formula

1 In the slope formula, on top we get:
(1) - (-3)
(1) - (-2)
(1) - (-1)
(-3) - (-1)
(-3) - (-2)

2 This simplifies as:
-4
-2
2
4
something else

3 In the slope formula, underneath we get:
(-2) - (-3)
(-2) - (-1)
(-1) - (-3)
(-1) - (-2)
(-1) - (1)

4 This simplifies as:
-3
-1
1
2
something else

5 So the slope is:
m = 3
m = 4
m = 1/2
m = 1/3
m = 1/4