The function is
.
The domain of the function is all real numbers except
.
Intercepts :
\Find the
-intercept by substituting
in
.



The
-intercept is
.
Find the
-intercept by substituting
in
.

The
-intercept is
.
Find the extrema of
.
Differentiate on each side with respect to
.



.
Find the critical numbers by solving
.
.
The first derivative is undefined at
.
is not in the domain of the original function
.
Therefore, there is no relative extrema.
\The function is always decreasing on its domain since
.
Find the inflection points:
\The first derivative of
is
.
Differentiate on each side with respect to
.



The second derivative of
is
.
Find the inflection points by solving
.
.
The second derivative is undefined at
.
is not in the domain of the original function
.
Therefore, there are no inflection points.
\Check the concavity at undefined values.
\Consider the test intervals
, and
.
| \
Interval \ | \
Test Value | \Sign of ![]() | \
Concavity | \
![]() | \
![]() | \
\
| \
Down | \
![]() | \
![]() | \
\
| \
Up | \
Thus, the graph is concave up on the interval
.
The graph is concave down on the interval
.
Find asymptotes of function
.
Find the horizontal asymptote by evaluating
.




The horizontal asymptote is
.
Find the vertical asymptote by equating denominator to zero.
\

.
The vertical asymptote is
.
The horizontal asymptote is
.
Graph the function
.
The domain of the function is all real numbers except
.
Intercepts are
and
.
The vertical asymptote is
.
The horizontal asymptote is
.
There is no relative extrema.
\There are no inflection points.
\Graph:
\Draw the coordinate plane.
\Plot the intercepts and asymptotes.
\Connect the curve with plotted points.
\Graph the function
:
Graph of the function
.
.