Answer
The slope of the line is $\frac{1}{3}$.
Work Step by Step
The given points are
$(x_1,y_1)=(-1,0)$ and $(x_2,y_2)=(5,2)$
Slope
$\Rightarrow m=\frac{y_2-y_1}{x_2-x_1}$
Substitute all the values.
$\Rightarrow m=\frac{2-0}{5-(-1)}$
Simplify.
$\Rightarrow m=\frac{2}{5+1}$
$\Rightarrow m=\frac{2}{6}$
$\Rightarrow m=\frac{1}{3}$
Hence, the slope of the line is $\frac{1}{3}$.