# What Are Intercepts in Math?

## Transcript

What are intercepts in math? I'm Bon Crowder and we're talking about intercepts. The intercepts in math first of all refer to graphs and they mean two things, both Y intercept and X intercept. So an X intercept is where a graph goes through the X axis and a Y intercept is where it goes through the Y axis. Now we've got kind of a crazy graph up here on the top, this is not a function at all, but it is a graph and it does have intercepts. And each of these intercepts have a point associated with them and the X intercepts have some X value, say -85 and the Y value is always 0. So here we might have -72, 0, this might be -3, 0. Obviously not drawn to scale. The Y intercepts, however, have just the opposite. They have 0 as the first coordinate and then a number that's not 0 that's the second, well, it could be 0 actually, that's not fair to say, 0, some other number, some number, say 5. This one could be 0, -1 and maybe -, -27 and notice we have this as an intercept and this as an intercept X intercepts and this one as well. In a function which we have down here, notice we have all these X intercepts but how many Y intercepts do we have? Only 1, so a function has only 1 Y intercept. Y intercepts are like "The Highlander," there can be only 1 for a function. And all these other X intercepts are totally possible. So that is what intercepts mean in math. I'm Bon Crowder, go find you some crazy graphs.