## anonymous 5 years ago The number of Mosquitos, in millions, in a certain area depends on the June rainfall (x) in inches according to the function M(x) = 17x-x^2. What rainfall produces the maximum number of mosquitos?

1. anonymous

max is at $\frac{-b}{2a}=\frac{17}{2}$

2. anonymous

or 8.5 if you prefer