Question

Which expression can be used to determine the average rate of change in f(x) over the interval mc001-1.jpg

Answer 1

The average rate of change of a function f(x) over an interval (a, b) is given by
$\frac{f(b)-f(a)}{b-a}$

Therefore, given a function, f(x), over an interval (2, 9), the average rate of change of the function can be found using the expression
$\frac{f(9)-f(2)}{9-2}$

Answer 2

Answer:

The answer is D.