#### Answer

$m=-\dfrac{3}{5}$

#### Work Step by Step

Using $m=\dfrac{y_1-y_2}{x_1-x_2}$ or the Slope Formula, the slope of the line through $(
3,-3
)$ and $(
8,-6
)$ is
\begin{array}{l}\require{cancel}
m=\dfrac{-3-(-6)}{3-8}
\\\\
m=\dfrac{-3+6}{3-8}
\\\\
m=\dfrac{3}{-5}
\\\\
m=-\dfrac{3}{5}
.\end{array}