SOLUTION: The profit that the vendor makes per day by selling x pretzels is given by the function P(x)= -0.002x^2+1.4x-400. Find the number of pretzels that must be sold to maximize profit.

SOLUTION: The profit that the vendor makes per day by selling x pretzels is given by the function P(x)= -0.002x^2+1.4x-400. Find the number of pretzels that must be sold to maximize profit.

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Question 115172: The profit that the vendor makes per day by selling x pretzels is given by the function P(x)= -0.002x^2+1.4x-400. Find the number of pretzels that must be sold to maximize profit.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
the maximim for this function (a parabola) lies on the axis of symmetry (at the vertex)

the equation for the axis of symmetry is x=-b/2a

x=-1.4/(2*(-.002))
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