# Chapter 2 - Section 2.4 - Linear Functions and Slope - Exercise Set - Page 154: 102

See below.

#### Work Step by Step

The average rate of change between two points is the slope of the line passing through those points. We know that by the Slope Formula: if $P_1(x_1,y_1)$ and $P_2(x_2,y_2)$ are on a line, then the slope is: $m=\frac{y_2-y_1}{x_2-x_1}$.

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