Answer
$m$ (slope) = $3$
Work Step by Step
The slope can be calculated with the formula $m = (y_2 - y_1)/(x_2 - x_1)$. Our points are $(0,0)$ and $(1,3)$, $p_1$ and $p_2$ respectively. Subbing in our given values leaves $m = (3 - 0)/(1 -0)$, which gives us $m = 3$.