I am suppose to find an equation of a line through two points, sounds easy but...after trying to find the slope of (-3,7) and (-3,-8), I come out with no slope. I am not sure how to find an equation without a slope? I use slope-intercept form always but in this case it is just making me somewhat confused.

Question

I am suppose to find an equation of a line through two points, sounds easy but...after trying to find the slope of (-3,7) and (-3,-8), I come out with no slope.  I am not sure how to find an equation without a slope? I use slope-intercept form always but in this case it is just making me somewhat confused.

anonymous · Answer

they have same x value but different y value , it is a vertical line ( it is x=-3 )

it have infinate slope.

anonymous · Answer

Okay, thanks! :)

anonymous · Answer

yes, elecengineer is right
it is a vertical line