Y-Intercept of A Line

How the equation of a line relates to the graph of its y-intercept

The Y-Intercept of a line is the point where a line's graph intersects (crosses) the Y-axis.

  • A y-intercept of 3 means that a line's graph intersects the Y-axis at the point (0, 3).
  • A y-intercept of -4 means that the graph of a line crosses the Y-axis at the point (0, -4).

Example of the Y-Intercept

In the diagram below, the y-intercept is 2 which is the point (0, 2).

picture of y-intercept of linear equation

Practice Problem

Identify the Y-intercept

What is the Y-intercept of the line pictured below?

y-intercept of a line

The Y-intercept is 3 or the point (0, 3).

Back to Linear Equations Next to X Intercept