Previous Problem List Next (1 point) You are given the four points in the plane A = (1, −1), B = (3, 4), C = (6, -5), and D= (8,7). The graph of the function f(x) consists of the three line segments AB, BC and CD. Find the integral elementary figures. f(x) dx = 8 f(x) dx by interpreting the integral in terms of sums and/or differences of areas of