ExtremaAndlnflectionPoints: Problem 2 Previous Problem Problem List Next Problem (2 points) Find the critical point and the interval on which the given function is increasing or decreasing, and apply the First Derivative Test to the critical point. Intervals should be given in interval notation. Let f($) : i 5 1'2 +8 Critical Point :1: : The interval on the left of the critical point is 555 On this interval, fis ? v while f' is ? v . The interval on the right of the critical point is 555 On this interval, fis ? v while 3" is ? v . ls f a maximum or minumum at the critical point? '2 v help (intervals) ExtremaAndlnflectionPoints: Problem 4 Previous Problem Problem List Next Problem (2 points) x) 2 3:326I a) Determine the intervals on which 1" is concave up and concave down. f is concave up on: f is concave down on: b) Based on your answer to part (a), determine the inection points of f. Each point should be entered as an ordered pair (that is, in the form (x, y)). === (Separate multiple answers by commas.) help (intervals) Enter DNE if an answer does not exist