# What does average rate of change mean?

##### 1 Answer

The average rate of change of a function

#### Explanation:

Consider the following diagram:

when

For example:

if

and:

you get that:

Average rate of change

This means that for your function:

Obviously your function is not a perfect straight line and it will change differently inside that interval but the average rate can only evaluate the change between the two given points not at each individual point.