The rectangles in the graph below illustrate a left endpoint

Last updated: 4/9/2024

The rectangles in the graph below illustrate a left endpoint Riemann sum for f x 12 x on the interval 2 6 The value of this left endpoint Riemann sum is 2 x This Riemann sum is an approximation of the area of the region enclosed by y f x the x axis and the vertical lines z 2 and z 6 Is this approximation an overestimate of an underestimate of or equal to the actual area of the region or is there ambiguity i e the relationship cannot be determined select an answer an overestimate of equal to an underestimate of there is ambiguity y 8 7 6 5 3 2 1 1 2 3 4 5 6 7 8 x Left endpoint Riemann sum for y 12 x on 2 61