Chapter 5 - Linear Functions - 5-1 Rate of Change and Slope - Practice and Problem-Solving Exercises - Page 296: 11

$m=-2$

To find the slope, we use the formula $m=\frac{y_2-y_1}{x_2-x_1}$. We plug in the $x$ and $y$ values from the points shown in the graph: $m=\frac{-2-2}{2-0}$ We simplify above and below the fraction bar with subtraction: $m=\frac{-4}{2}$ Then, we divide: $m=-2$