Use four rectangles to nd an estimate of each type for the area under the given graph of f tiorn z = 1 to m = 9. 1. Take the sample points from the left-endpoints. Answer L4 = [j 2. Is your estimate L4 an underestimate or overestimate of the true area? Choose one v 3. Take the sample points from the rightendpoints. Answer R4 = C] 4. Is your estimate R; an underestimate or overestimate of the true area? Choose one v 5. Use the Trapezoid Rule with n. = 4. Answer T4 = E] B. Is your estimate T4 an underestimate or overestimate ofthe true area? Choose one v