Question 206631
If you graph the equation {{{x=-3}}}, you'll get a vertical line at {{{x=-3}}}. Because the slope is comprised of the 'rise' over the 'run', this means that you'll have a 'rise' of some unknown value (we'll call it 'x') over a 'run' of 0. So we'll have the slope {{{x/0}}}. Since you CANNOT divide by zero, this means that the slope is undefined.


So the slope for {{{x=-3}}} is undefined.