Y Intercept of a Straight Line

The line on a graph that runs vertically (up-down) through zero.

It is used as a reference line so you can measure from it.

 Y Axis

The Y intercept of a straight line is simply where the line crosses the Y

axis.

Example:

In the above diagram the line crosses the Y axis at 1.

So the Y intercept is equal to 1.

What is the y-intercept for the following line?

What is the y-intercept for the following line?

What is the y-intercept for the following line?

What is the y-intercept for the following line?