The condition are :
\I/D test :
\If on the interval, then
is increasing on the interval.
If on the interval, then
is decreasing on the interval.
Concavity test :
\If for all
in the interval, then the graph of
is concave upward on the interval.
If for all
in the interval, then the graph of
is concave downward on the interval.
Graph :
\Graph the function such that all the conditions are satisfied :
\Using above tests,
\The critical points are ,
,
and
.
Therefore it has a either local maximum or minimum at the critical points.
\ represents, the inflection point is
.
represents that
is increasing on
.
represents that
is decreasing on
.
represents that
is concave upward on
.
represents that
is concave downward on
.
represents that
is an even function.
Graph the function is drawn such that all the conditions are satisfied :
\.