Find the rate of change in the following table:

Question

Find the rate of change in the following table:

x y

-2 15

-1 10

0 5

1 0

Answer 1

rate of change = slope of a line through the points = -5

as x increases by 1, y decreases by 5

slope = change in y over change in x = -5/1 = -5 = rate of change