he function f is continuous and differentiable on the closed interval (3, 7]. The table above gives selected values of f on this interval. Whi I. The minimum value off on [3, 7] is 12. II. There exists c, for 3 < c< 7, such that f' (c) = 0. II. f' (x) > 0 for 5 < x<7.

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