Use geometry (not Riemann sums) to evaluate the following definite integral. Sketch a graph of the integrand, show the region in question, and interpret your results. f ( x ) dx , where f ( x ) = 6 if x s 4 4x - 10 if x > 4 . . . Sketch a graph of the integrand, and then shade the region in question. Choose the correct graph below. O A. B. O C. Ay 12- f(x)dx =(Simplify your answer. Type an integer or a decimal.)