Using the given points and line, determine the slope (8,1) and (8,-4)

To solve for slope, use the equation:

slope = (y₂ - y₁)/(x₂ - x₁)

(8,1) = (x₁, y₁)
(8, -4) = (x₂, y₂)

Plug into corresponding places

(-4 - 1)/(8 - 8)

-5/0 = Undefined (because you cannot have parts over 0)

There is no slope. Unsolvable

hope this helps