Answer:
Option D : Undefined
Step-by-step explanation:
Given points (-5,8) and (-5,3) lies on a line.
Slope of a line is given by:
m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m = \frac{3-8}{-5-(-5)}\\\\m=\frac{-5}{0}[/tex]
Anything divided by zero is undefined.
Therefore,
Option D is the correct answer.