' Grad ebook ' i > Assessment ' ' ' - . _ _ -1 i . Ecgunchfnm) 8:1: + 7:1: . For this function there are four important intervals: v.5 L , , an 7 [ , 00) where A, and C are the critical numbers and the function is not define Select an answerv ,Select an answerv ' Select an answerv this function has no inflection points, but we can still consider its concavity. For each of the utervals, tell whether f(a:) is concave up or concave down. \f'thrpughv e to identify maximums as points. thrbujgh e to identify minimums as points. 5\" F! d'derivative to identify intervals where f(_a_:) '5