Question

Find the slope of the line that goes through the following points.
(0, -4), (1, -3), (2, -2), (3, -1)

A. -1
B. 1
C. -4
D. -7

(-1, -4), (0, -1), (1, 2), (2, 5)
A. -5
B. -3
C. -1/3
D. 3

Answer 1

change in y/change in x for ANY two points
for the first problem for example first and last
(-1 - -4 ) / (3-0) = 3/3 = 1

for the second problem choose maybe the middle two
(2 - -1) / (1-0) = 3/1 = 3
check using last two points
(5-2) / (2-1) = 3/1 = 3 remarkable :)