An *x***-intercept** is the point where a parabola crosses the *x*-axis. This point is also known as a** zero**, **root**, or** solution**. Some quadratic functions cross the *x*-axis twice. Some quadratic functions never cross the *x*-axis. This tutorial focuses on the parabola that crosses the x-axis once -- the quadratic function with only 1 solution.

Four Different Methods for Finding the *x*-intercept of a Quadratic Function

- Graphing
- Factoring
- Completing the square
- Quadratic formula

This article focuses on the method that will help you find the *x*-intercept of *any *quadratic function - the quadratic formula.