1. Approximate the area under the curvey = x' from x = 1 to x = 3 using a right sum with 4 subdivisions. The area is approximately 6. Use the Method of Midpoint Rectangles (do NOT use the integral or antiderivative] to approximate the area under the curve f(x) = x2 - 2x + 4 from x = 5 tox = 15 . Usen = 5 rectangles to find your approximation. Answer =