 |  | We've got one mountain.
The tails both shoot down. |
Parabolas can also cross the x-axis TWO times (since their degree is TWO.) This happens when they have extra terms (other stuff added on!)
|  |
Fourth degree polynomials get a lot more exciting... If they have extra stuff added on.
 | is pretty boring. If you grab a graphing |
| calculator* to graph him, you'll see that he looks a lot like Standard Parabola Guy - but with a wider valley. | |
wider here |  | Still, the tails both shoot up. |