Answer
$m=1$
Work Step by Step
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 given coordinates: $m=\frac{3-0}{3-0}$
We simplify above and below the fraction bar with subtraction: $m=\frac{3}{3}$
We divide the fraction: $m=1$