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Cynthia began to draw midpoint rectangles to approximate the area under the curve for given . Trace Cynthia’s graph and finish drawing the remaining four midpoint rectangles. Then, compute the estimated area.

Make the remaining rectangles. Then calculate the areas of each rectangle and add them together to find .

The width of all of the rectangles is .

Cubic curve, coming from lower left, turning in second & first quadrant, continuing up & right, & 2 vertical shaded bars, bottom edges on x axis, each with width of 1, starting at x = negative 2, with midpoint of top edge of each bar, on the curve.