The function
.
Find the horizontal asymptote of function.
\Definition of a horizontal asymptote is
or
.

The numerator and denominator approaches to infinity as
tends to infinity.

If
then
.

Cancel the common terms on numerator and denominator.
\
As
then
.




Horizontal asymptote is at
.

The numerator and denominator approaches to infinity as
tends to infinity.

If
then
.

Cancel the common terms on numerator and denominator.
\
As
then
.




Horizontal asymptote is at
.
Observe the given graphs.
\The Graph (c) has a horizontal asymptote at
and
denoted as dashed line.
The Graph (c) is the graph of the function
.