# How do you graph x=0?

Sep 8, 2016

This is the equation of the y-axis. It is a vertical line through the origin.

#### Explanation:

Any vertical line has the equation $x = \square$

This is because it only has an x-intercept and does not intersect they-axis.

Vertical lines cannot be written in standard form because the slope is undefined.

The equation of the line is given by the x-intercept of the line.

In this case $x = 0$ goes though the origin (x=0), which means this is the equation of the y-axis.

[In the same way the equation of the x-axis is $y = 0$]