Question 669421

R(x)=40x-2x^2
=-2(x^2-20x+100)+200

=-2)x-10)^2+200

Vertex is (10,200)

To maximize revenue, the company should produce 10,000 cd players.

Maximum revenue will be $200,000
{{{drawing(500,500,-5,30,-10,250,circle(10,0,0.3),circle(10,200,0.3),grid(1),graph(500,500,-5,30,-10,250,y=40x-2x^2))}}}