Let f(x) = x2 – 5x – 6 and F(x) = | S4) f(t) dt. (a) Find the critical points of F and determine whether they are local min- ima or local maxima. (b) Find the points of inflection of F and determine whether the concavity changes from up to down or from down to up. (c) GU Plot y = f(x) and y firm your answers to (a) and (b). F(x) on the same set of axes and con-

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