Question: Let (x) = x2 - 8x + 15 and F(x) = At) at . (a) Find the critical points of x) and determine whether they

Let (x) = x2 - 8x + 15 and F(x) = At) at . (a) Find the critical points of x) and determine whether they are local minima or maxima. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) local minima X E local maxima X (b) Find the points of inflection of #x) and determine whether the concavity changes from up to down or down to up. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) up to down X down to up X

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