00:03
Here's a sketch of the graph we were shown, and first we want to describe its end behavior.
00:09
End behavior describes what the y values are doing as x goes further out to the right and the left.
00:15
So as x is going further to the right, we say x approaches infinity.
00:20
What are the y values doing? notice the graph is going up.
00:24
It's going up infinitely high, so we say the y values are approaching infinity.
00:29
And instead of saying y, we say f of x.
00:31
So we would say f of x approaches infinity as x approaches infinity.
00:39
And then on the other side, as x goes further to the left, we say x approaches negative infinity.
00:46
What are the y values doing? notice the graph is going down.
00:50
It's going down infinitely far, so the y values are approaching negative infinity...