Use six rectangles to find an estimate of each type for the area under the given graph of f from a = 0 to a = 12. 1. Take the sample points from the left-endpoints Answer . Lo = 86 2. Is your estimate L an underestimate or overestimate of the true area? Overestimate 3. Take the sample points from the right-endpoints Answer: R. = 4. Is your estimate Re an underestimate or overestimate of the true area? Underestimate 5. Take the sample points from the midpoints Answer: Me = 79.6 Note: You can click on the graph to enlarge the image