Question: 4 (a) Let f be a continuous real-valued function on the Whole real line. Suppose that f is differentiable at 0 with f'(0) > 0

4 (a) Let f be a continuous real-valued function on the Whole real line. Suppose that f is differentiable at 0 with f'(0) > 0 and f(0) : 0. Show that there is E > 0 so that f(:r:) is positive for :1: E (0, e) and at) is negative for :1: E (6, 0)

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