Question

Find the average rate of change for the given function from x = −1 to x = 2.

a  -1/3
b  1/3
c  -3
d  3

Answer 1

average rate of change is the slope. You can use the two points to calculate the slope, or just use the graph and count rise over run.

rise over run is down 3 and to the right 1 = $\frac{-3}{1}  $ = -3

Answer: C