AP Calculus Free-Response Questions

Find the rate of change in square feet per second of the area of the triangle XOY when X is 9. ... 2000 Graphing Calculator on 1st 3 questions only. ... acceleration a(t), in ft/sec2, is the piecewise linear function defined by the graph above. a. Is the velocity of the car increasing at t = 2 seconds? ................
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