find equation of line through (3, 7) with slope m undefined

[jishyy]

Description: Find an equation of the line that has the given slope and contains the given point. Determine whether your line is increasing, decreasing, horizontal, or vertical, and check that the sign of 'm' agrees with your determination.

Problem: 'm' is undefined, (3,7)

I know I am a tard, but help would be nice.
Thanks

 

[skeeter]

Re: Help on undefined slopes.

an undefined slope indicates that the line is vertical ... what is the equation of a vertical line that passes thru the point (3,7) ?