Question 74297
Any vertical line will have the equation in the form x=k where k can be any number. In this case, we don't care about y. If we say x=1, then we will have a line through (1,0) (1,1) (1,2) etc. In other words, it will pass through every point with the x-coordinate of 1. So if a point passes through (-1,-3) then the equation is x=-1 which will pass through every point with a x-coordinate of -1.