Calculate the average rate of change of the given function over the given interval.

Question

Interval: [2, 6]

t (months)

2

4

6

R(t) ($ millions) 20.7 24.5 20.1

Answer 1

Average rate of change over an interval is the slope between the start and end points of the interval.

Average rate of change = (20.1-20.7)/(6-2) = -0.15