Question

Find the average rate of change of f(x) = 9x² - 7 on the interval [3, 6]. Your answer will be an expression involving b.

Answer 1

81

Explanation:

`\displaystyle (f(b)-f(a))/(b-a)=(f(6)-f(3))/(6-3)=(317-74)/(3)=(243)/(3)=81`

Therefore, the average rate of change of f(x) on the interval [3,6] is 81