# y-intercept

A simple line graph. The y-intercept in this case is 2.

The y-intercept of a line on a graph is where the line touches (or intercepts) the y-axis (the numbered line going straight up).

The equation for straight lines is ${\displaystyle y=mx+b}$. "${\displaystyle b}$" is the ${\displaystyle y}$-intercept.