Left and Right Endpoint Approximations
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Interactive Left and Right Endpoint Approximation Activity
Choose Left or Right Endpoint Approximation and move the slider to see the approximations with different numbers of rectangles. You will then see the approximation of the area under the curve y=.3x3−2x2+2x+5 for 1<x<6.
Left-Endpoint Approximation Right-Endpoint Approximation
Area ≈ 6.63 + 3.49 + 0.45 + 1.91 = 12.48