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 [math]\displaystyle{ y=mx+b }[/math]. "[math]\displaystyle{ b }[/math]" is the [math]\displaystyle{ y }[/math]-intercept.
You can find the y-intercept of a graph by seeing where the x-coordinate equals 0. The y-coordinate of a point with a x-coordinate of 0 is the y-intercept.
Y-intercept Media
Graph y=ƒ(x) with the x-axis as the horizontal axis and the y-axis as the vertical axis. The y-intercept of ƒ(x) is indicated by the red dot at (x=0, y=1).
