Consider the function [math].

[math] has two inflection points (keep in mind that the Second Derviative is real handy in determining these!) at [math] and [math] with [math]
where [math] is
and [math] is
Finally for each of the following intervals, tell whether [math] is concave up (type in CU) or concave down (type in CD).
[math]:
[math]:
[math]

Your overall score for this problem is