9. A company that manufactures a specialty line of high performance racing boats has determined that its profit margin can be represented by the equation, PM(x)=-x^3+7x^2-10x, where x is in thousands of dollars.

Question

9. A company that manufactures a specialty line of high performance racing boats has determined that its profit margin can be represented by the equation, PM(x)=-x^3+7x^2-10x, where x is in thousands of dollars.

a) graph without technology.
b) determine the production numbers where the profit margin is negative.
c) determine the production numbers that generate a positive profit margin.
d)at what point is the profit margin greatest.

Answer 1

Again, I answered this question for you yesterday, when you posted it as Kevin

http://www.jiskha.com/display.cgi?id=1385420924