Question

What is the slope of the line for the equation x = 5?

Answer 1

The slope is indeterminate. Your equation represents a VERTICAL line.

Explanation:

The slope is `m=(Deltay)/(Deltax)` BUT `Deltax=5-5=0` always (for any `y` value `x` is always zero)!!!
so you'll get `m=(Deltay)/0` which is indeterminate.