Well, you know if there's the same x value for two different points, you have a vertical line. The slope of a vertical line is undefined, but your formula looks like x=-5.
Answer:
slope is undefined
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (-5, 9) and (x₂, y₂ ) = (- 5, 6)
m = [tex]\frac{6-9}{-5+5}[/tex] = [tex]\frac{-3}{0}[/tex]
Division by zero is undefined, hence
The slope of the line is undefined
