Use the given graph of the function f to answer the following questions Answer Formats D 2 Type your answers in interval notation Use INF and INF to denote o and co f x 3 2 2 x Enter NONE if it is not positive negative If there is more than one interval type your answer as a comma separated list For example a1 b1 a b If there is more than one interval type your answer as a comma separated list For example a b a b Part 1 The First Derivative Find the open interval s on which f x is positive negative Type your answers using interval notation 1 f z is positive 2 f z is negative Part 2 The Second Derivative Find the open interval s on which f a is positive negative Type your answers using interval notation 1 f z is positive 2 f z is negative