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The demand function for a popular tennis racket is given by p= -5x2- 20x + 800 where p is the wholesale unit price in dollars

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The demand function for a popular tennis racket is given by p= -5x2- 20x + 800 where p is the wholesale unit price in dollars and a is the number of tennis rackets demanded each week. Compute the elasticity of demand when a = 10. [Hint: Use Implicit Differentiation] 0 1 13 1 14 O 12 0 1 11 1 10

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