Vertical Line Equation Calculator
Calculate vertical line equation instantly online. Enter x-coordinate to find the equation of the vertical line in x=k form. Visualize vertical lines on a graph.
Enter x-coordinate
Equation
Visualization
The vertical line is shown in blue on the graph.
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.
- Equation Form: x = k
- Parallel to: y-axis
- Perpendicular to: x-axis
- Slope: Undefined