Answer :
The equation x=0 represents the set of points (x,y) in the plane that have the form
[tex](0,y)[/tex](since x is zero). So its graph is a vertical line, the y axis to be precise

The equation x=0 represents the set of points (x,y) in the plane that have the form
[tex](0,y)[/tex](since x is zero). So its graph is a vertical line, the y axis to be precise