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 ) = E(6, 8) and (x₂, y₂ ) = F(6, - 2)
m = [tex]\frac{-2-8}{6-6}[/tex] = [tex]\frac{-10}{0}[/tex] ← undefined
Since division by zero is undefined then the slope is undefined.
This means the line is vertical and parallel to the y- axis