Posted by julissa on .
The daily production costs P (in dollars) for a manufacturer of sound systems is given by the quadratic function.
P(x)= 0.003x^2+150x375,000
Where x is the number of units produced. What production level will yield a maximum profit?

math 
Steve,
as with all parabolas, the vertex (in this case a maximum) is at
p = b/2a = 150/.006