For the function
,
find all intervals where the function is increasing:
is increasing on
(Give your answer as an interval or a list of intervals,
e.g., (-infinity,8] or
(1,5),(7,10) .)
Similarly, find all intervals where the function is decreasing:
is decreasing on
(Give your answer as an interval or a list of intervals,
e.g., (-infinity,8] or
(1,5),(7,10) .)
Finally, find all critical points in the graph of
critical points:
(Enter your -values as a comma-separated list,
or none if there are no critical
points.)
You can earn partial credit on this problem.