Suppose that f is given for x in the interval [0, 12] by x = 024681012 f(x)=15129891316 A. Estimate f'(2) using the values of f in the table. f'(2) -1.5 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).)