Evaluate the integral using the following values. 6 6 x3 dx = 320, x dx = 16, dx = 4 1 2 (3 - 6x + 1 dx\fConsider the function f(x) = 4x + 3. (a) Estimate the area between the graph of f and the x-axis between x = 0 and x = 3 using six rectangles and right endpoints. (Round your answer to two decimal places.) Sketch the graph and the rectangles. 12 10 O 8 X N (b) Repeat part (a) using left endpoints. (Round your answer to two decimal places.)Consider the function f that is continuous on the interval [-5, 5] and for which the following is true. f(x) dx = 4 Evaluate each integral. (a) [f(x) + 2] dx (b) f(x + 3) dx -3 5 (c) f(x) dx (f is even.) 5 5 (d) f(x) dx (f is odd.) -5