\
The function is
.
To find the horizontal asymptote, evaluate the limit of the function as
and
.

Now find the limit of the function as
.

As
then
becomes
.

Therefore the horizontal asymptotes are
and
.
\
Find the vertical asymptote.
\Vertical asymptote appears when the function is not defined.
\To find the vertical asymptote, equate denominator of the function to zero.
\So
.


It has no real roots.
\Therefore there is no vertical asymptotes.
\Verification :
\Graph :
\Graph the function
:

Observe the graph.
\There is no vertical asymptotes and horizontal asymptotes are
and
.
\
There is no vertical asymptotes.
\The horizontal asymptotes are
and
.