. Find the open interval(s) where f() is concave up, and where f(@) is concave down. . Find any inflection points.-37-2 54r 162(x2 + 3) Let f(x) = 12 - 9 f (@) = (72 -9)2 and f (@) = (12 - 9)3 Use this function and its derivatives to answer questions 1 a. through to 1 e.Sketch the curve, and label on your curve all the information found in questions 1 a - 1 g