Answer:
slope is undefined
Explanation:
Calculate the slope m using the slope formula
m =
![(y_(2)-y_(1) )/(x_(2)-x_(1) )](https://img.qammunity.org/2021/formulas/mathematics/middle-school/89lni2arad82a9125nchkq0vkwnbj1bzli.png)
with (x₁, y₁ ) = (- 3, - 1) and (x₂, y₂ ) = (- 3, 3)
m =
=
![(4)/(0)](https://img.qammunity.org/2021/formulas/mathematics/high-school/lw7wg3hh4zxx541zvsw6adcfhtgm2jp9xz.png)
Since division by zero is undefined, then the slope is undefined.
This indicates the line is vertical and parallel to the y- axis