Question

Given the function defined in the table below, find the average rate of change, in simplest form, of the function over the interval 2, is less than or equal to, x, is less than or equal to, 32≤x≤3.
xx f, of, xf(x)
11 1515
22 1717
33 1919
44 2121

Answer 1

Average rate of change = (f(3) − f(2)) / (3 − 2) = (19 − 17) / 1 = 2.