# How do you find the slope of (-2, 5), (-2, -3)?

The line through $\left(- 2 , 5\right)$ and $\left(- 2 , - 2\right)$ is vertical and as such its slope is undefined.
$\text{slope } = \frac{\Delta y}{\Delta x}$
$\textcolor{w h i t e}{\text{XXXXXXXX}}$ if and only if $\Delta x \ne 0$
In this case $\Delta x = 0$
$\textcolor{w h i t e}{\text{XXX}}$since $\left(\left(- 2\right) - \left(- 2\right)\right) = 0$