Options for drop down bar are: "overestimate of", "equal to", "underestimate of" or "there is ambiguity".
(1 point) The rectangles in the graph below illustrate a left endpoint Riemann sum for f (x)on the interval [4, 8 The value of this left endpoint Riemann sum is , and this Riemann sum is an underestimate of $ the area of the region enclosed by y-f(x), the x-axis, and the vertical lines x = 4 and x = 8. 8 7 6 5 3 2 2 3 6 7 Left endpoint Riemann sum for yon [4, 8] [4.8]
