Question

How do you find the slope and y intercept of `x=-7`?

Answer 1

I found:
NO slope
and
NO y-intercept.

Explanation:

Well, this equation represents a perfectly vertical line passing through `x=-7`.
It has no slope because `x` never changes so the slope (representing the rate of change of `y` AS `x` CHANGES) cannot be evaluated.
Slope`=(Deltay)/(Deltax)=(Deltay)/0=???`
Being a vertical line parallel to the `y` axis it will never cross the `y` axis giving no intercept.