SOLUTION: Solve the problem. The profit that the vendor makes per day by selling x pretzels is given by the function p(x)= -0.002x^2 + 1.6x -100 Find the number of pretzels that must be s

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Question 765269: Solve the problem.
The profit that the vendor makes per day by selling x pretzels is given by the function p(x)= -0.002x^2 + 1.6x -100 Find the number of pretzels that must be sold to maximize profit.
Answer

400 pretzels

800 pretzels

220 pretzels

0.8 pretzels
Answer by stanbon(75887) About Me  (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)= -0.002x^2 + 1.6x -100 Find the number of pretzels that must be sold to maximize profit.
Answer
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Maximum occurs when x = -b/(2a) = -1.6/(2*-0.002) = -1.6/(-0.004) = 400
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Cheers,
Stan H.
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400 pretzels
800 pretzels
220 pretzels
0.8 pretzels