Chapter 5 - Linear Functions - 5-1 Rate of Change and Slope - Practice and Problem-Solving Exercises - Page 296: 23

$m=0$

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: $m=\frac{2-2}{3-(-3)}$ We simplify above and below the fraction bar with subtraction: $m=\frac{0}{6}$ Next, we divide: $m=0$