Let f(x) = 18 + 9 . The first and the second order derivatives of f are given by (x) = and (x) = , respectively. Determine:(a) intervals of concavity.(b) the x and y coordinates of the inflection points.

Question

Let f(x) = 18  + 9  . The first and the second order derivatives of f are given by  (x) =  and  (x) =  , respectively. Determine:(a) intervals of concavity.(b) the x and y coordinates of the inflection points.

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The Answer of Let f(x) = 18  + 9  . The first and the second order derivatives of f are given by  (x) =  and  (x) =  , respectively. Determine:(a) intervals of concavity.(b) the x and y coordinates of the inflection points.

Let F(x) = 18 + 9