# Question bffdf

Refer to explanation

#### Explanation:

Using function notation the average rate of a function $f \left(x\right)$ from a to x is

Δ(x)=(f(x)-f(a))/(x-a)

where

Δ# is the name of this average rate of change function

$x - a$ represents the change in the input of the function f(x)

$f \left(x\right) - f \left(a\right)$ represents the change in the function of f(x) as the input changes from a to x