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monster123

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The Demand function for a product is modeled by

P=20-0.02x, less than or equal to x less than or equal to 1000

Where p is the price per unit in dollars and x is the number of units.

A. Determine when the demand is elastic, inelastic, and of unit elasticity.

B. Use the result of part (a) to describe the behavior of the revenue function.I started the problem using n=p/x/dp/dx and plugged in the numbers into the formula and did the derivative after computing I end up with an answer of -999 with absolute value of 999 is this correct? if not what could be my mistake?