the y axis is perpendicular to the x axis
x=something
given
(x,y)
(-5,-2)
x=-5 is the solution
slloope=rise/run
rise=infintiy
run=0
slope=infinity/0=undeifined
the slope is unfeinfed
to grpah it, go 5 units left from teh center and go up and down for the line while being paralell to the y axis and perpendicular to the x aixis