Answer
$m=\dfrac{1}{2}$
Work Step by Step
Using $m=\dfrac{y_1-y_2}{x_1-x_2}$ (or the Slope Formula), the slope, $m$, of the line through $(
-3,9
) \text{ and } (
5,13
)$ is
\begin{array}{l}
m=\dfrac{9-13}{-3-5}
\\\\
m=\dfrac{-4}{-8}
\\\\
m=\dfrac{1}{2}
.\end{array}
