Please help

Problem 4. (2 points) Suppose that f is given for a in the interval [0, 12] by C = 0 2 4 6 8 10 12 f(x) = -16-13 -12-13 -15-17-19 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 a 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) ) Note: You can earn partial credit on this