This exercise involves local maxima and minima of polynomial functions. A graphing calculator is recommended. (a) Graph the function P(x) = (x - 4)(x - 5) (x - 6) and find all local extrema, correct to the nearest tenth (х, у) %3D local minimum local maximum (х, у) 3D (b) Graph the function Q(x) = (x - 4)(x - 5)(x - 6) + 7 and use your answers to part (a) to find all local extrema, correct to the nearest tenth. (х, у) %3D local minimum local maximum (х, у) %3

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