Vertical Line Equation Calculator

Instantly calculate the equation of a vertical line and visualize it on a graph. Simply enter the x-coordinate.

Enter x-coordinate

Equation

What is a Vertical Line Equation?

In coordinate geometry, a vertical line is a line that is parallel to the y-axis and perpendicular to the x-axis. The equation of a vertical line is always in the form x = k, where k is a constant representing the x-intercept (the point where the line crosses the x-axis).

For example, if you have a vertical line passing through the point (3, 0), its equation is x = 3. No matter what the y-value is, the x-value on this line is always 3. This calculator helps you find this equation by simply entering the x-coordinate. The visualization helps to understand how the vertical line looks on the Cartesian plane.