Let , for .
A.
B.
On what interval or intervals is increasing?
(Give your answer as an interval or a list of intervals,
e.g., (-infinity,8] or
(1,5),(7,10), or enter
none for no intervals.)
C.
On what interval or intervals is the graph of concave up?
(Give your answer as an interval or a list of intervals,
e.g., (-infinity,8] or
(1,5),(7,10), or enter
none for no intervals.)
Use your answers above and your knowledge of derivatives and
antiderivatives to sketch a graph of .
You can earn partial credit on this problem.