Answer
$m=3$
Work Step by Step
Using $m=\dfrac{y_1-y_2}{x_1-x_2}$ or the slope between two points, then,
\begin{array}{l}
m=\dfrac{2-(-4)}{3-1}\\\\
m=\dfrac{6}{2}\\\\
m=3
.\end{array}
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