Answer:
<h2> y = –2</h2>
Step-by-step explanation:
The given function is

An asymptote refers to a restriction in the domain or range set of the function. This happens to rational functions, because there's a scenario where the function is undetermined: when its denominator is zero.
So, in this case, the value that makes the denominator zero is

That means, we need to restrict the domain for  . But this is a vertical asymptote.
. But this is a vertical asymptote. 
To find horizontal asymptotes, we need to find the restrictions for the range of the function, we do that isolating  .
.

So, if we analyse the denominator

Therefore, the restriction is  . In other words, the vertical asymptote is the first choice.
. In other words, the vertical asymptote is the first choice.