00:01
So this problem asks us to find the limit of a function a of x at various values.
00:09
And this function a of x is an asymptotic function.
00:14
So for part a, we're looking at the value x is equal to negative.
00:18
And so we have this line representing x equal to negative 3.
00:25
And we see that from the left, a of x goes like that.
00:30
From the right, it goes something like that.
00:33
And so as the limit as x approaches negative 3 of a of x, well, from the left, we see that approaches infinity.
00:42
From the right, it also approaches infinity on these asymptotes.
00:46
So therefore, we can say that for part a, the limit is equal to infinity.
00:53
Similarly, for part b, we're looking at the value of x is equal to two.
00:59
So let this line represent x is equal to two.
01:02
From the left, a of x looks something like this.
01:05
From the right, something like this.
01:09
So part b, we want to find the limit as x approaches 2 from the left.
01:17
So we can look at this part of a of x, the left of x is equal to 2.
01:23
You see it approaches negative infinity as it gets infinitely close to x is equal to 2...