X intercept of A line

All lines except for horizontal lines have an x-intercept. The x-intercept is where the line crosses the x-axis. See the picture on the right.

Picture of X intercept of a Line

Examples

  • An x-intercept of 5 , means that the line cross the x-axis at 5, which is the point ( 5,0)
  • An x-intercept of -2 , means that the line cross the x-axis at -2, which is the point ( -2,0)
  • An x-intercept of 3 , means that the line cross the x-axis at 3, which is the point ( 3,0)

Practice Problems

What is the x-intercept of the line in the graph below?

Example of x intercept graph

The x intercept is 2, or, more specifically, it is the point (2,0)