# College Algebra

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The number of Mosquitoes M9x), in millions, in a certain area depends on the June rainfall x, in inches:M(x)=19x-x^2. What rainfall produces the maximum number of mosquitos?

• College Algebra -

Your function M(x) = 19x - x^2 is represented by a parabola which opens downwards

find the x of its vertex, that will be the rainfall which causes the most mosquitoes

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