Week 3b - Section 2 1 Definition of the Derivative: Problem Previous Problem List Next (1 point) Suppose that f is given for x in the interval [0, 12] by x = 0 2 4 6 8 10 12 f(x) = -10-14 -18 -19-18-15-13 A. Estimate f'(2) using the values of f in the table. f' ( 2) ~ B. For what values of x does f' (x) appear to be positive? (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5),(7,10) .) C. For what values of x does f (x) appear to be negative? (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5),(7,10) .)