SOLUTION: The profit that the vendor makes per day by selling x pretzels is given by the function P(x)= 11.1x^2+9.1x+11.2. Find the number of pretzels that must be sold to maximize profit.

Question 1033673: The profit that the vendor makes per day by selling x pretzels is given by the function P(x)= 11.1x^2+9.1x+11.2. Find the number of pretzels that must be sold to maximize profit.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The profit that the vendor makes per day by selling x pretzels is given by the function P(x)= -11.1x^2+9.1x+11.2. Find the number of pretzels that must be sold to maximize profit.
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Maximum occurs when x = -b/(2a) = -9.1/(2*-11.1) = 0.409
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That is an unreasonable number of pretzels.
Please check you post.
Cheers,
Stan H.
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