Ay Area A = 1,461 Calculate the definite integral f(x) dx by referring to the figure on the right with the indicated Area B = 2,500 d Area C = 3,260 a B C D X areas. A b Area D = 1,656 b [ (x ) dx =] d (Simplify your answer.)The graph of y = f(x) is shown to the right. Identify the intervals on which f'(x) > 0. a b fgh Which of the following shows every interval on which f'(x) > 0? Choose the correct answer below. O A. (b,d), (f,g) O B. (a,b); (c,e) O C. (a,b), (c,e), (f.9) O D. (a,b), (c,d), (f,g)