\
The function is .
To find the horizontal asymptote, evaluate the limit of the function as .
Therefore the horizontal asymptote is .
\
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
and
and
.
Therefore the vertical asymptotes are and
.
Verification :
\Graph :
\Graph the function :
Observe the graph.
\The horizontal asymptote is and vertical asymptotes are
and
.
\
The horizontal asymptote is .
The vertical asymptote are and
.