2 2 Suppose f(x) = 8 (a) The rectangles in the graph A illustrate f(a) on the interval 3

2 Suppose f(c) = -E. 8 (a) The rectangles in the graph A illustrate on the interval 3 7. The area of all the rectangles is and it is an underestimate of v the area of the region enclosed by y = f(c), the x-axis, and the vertical lines = 3 and 7. (b) The rectangles in the graph B illustrate for on the interval 3 c 7. The area of all the rectangles v the area of the region enclosed by y = f(c), the x-axis, and and it is an overestimate of the vertical lines = 3 and = 7. (c) To get a more accurate approximation of the area, the number of rectangles should: increase Graph A v rectangles. Graph B Note: Your objective is to find an approximation of the area under the curve on the interval 3 7 using the areas of each of the sets of rectangles. Hint: