$\"\"$

(a) The function is $\"\"$ .

Definition of asymptote:

Asymptote is a line that a graph gets closer and closer to, but never touches or crosses it.

Graph :

Graph the function $\"\"$ .

$\"\"$

Observe the graph:

The function $\"\"$ has two horizontal asymptotes at $\"\"$ and $\"\"$ .

$\"\"$

(b)

The function is $\"\"$ .

Graph :

Graph the function is $\"\"$ .

$\"\"$

Observe the graph:

The function $\"\"$ has a horizontal asymptotes at $\"\"$ .

$\"\"$

(a) Graph of function $\"\"$ and asymptotes at $\"\"$ and $\"\"$ ..

$\"\"$

(b) Graph of function $\"\"$ and asymptote $\"\"$ .

$\"\"$ .