SOLUTION: A store owner estimates that by charging "x" dollars each for a certain lamp, he can sell "10-x" lamps each week. What price will yield maximum revenue?

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Question 1157135: A store owner estimates that by charging "x" dollars each for a certain lamp, he can sell "10-x" lamps each week. What price will yield maximum revenue?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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The revenue is R(x) = x*(10-x).


It is a parabola opened downward, with x-intercepts at 0 and 10.


The maximum is achieved  at x= 5, exactly half way between x-intercepts.


So, the price of $5 per lamp will provide maximum revenue.    ANSWER

Solved.