Question

Which equation represents a vertical line ?
y = -x 
y = 12 
x = y 
x = 12

Answer 1

hence x=12is vertical line.... mark as brainliest if helped

Answer 2

x=12

because the point on x axis is parallel to y axis.nd r vertical

and point y=-x,x=y shows diagonal line.
y=12 is horizontal and parallel to. x axis.