Consider the function [math].
[math] has inflection values at (reading from left to right) [math], [math], and [math]
where [math] is
and [math] is
and [math] is
For each of the following intervals, tell whether [math] is concave up (type in CU) or concave down (type in CD).
[math]:
[math]:
[math]:
[math]:

Your overall score for this problem is