Answer
$m=\dfrac{1}{10}$
Work Step by Step
The slope $m$ of the line containing the points $(x_1, y_1)$ and $(x_2, y_2)$ is given by the formula:
$m=\dfrac{y_2-y_1}{x_2-x_1}$
Use the formula above to obtain:
$m=\dfrac{3-4}{-9-1}=\dfrac{-1}{-10} =\dfrac{1}{10}$
