Question 1150672
The profit (P), in dollars, for a company is modeled by the function P(x) = -750x² + 15000x, where x is the number of items produced.
 For what values of x will the company lose money?
-750x² + 15000x < 0
Factor out -x
-x(750x- 15000) < 0
multiply by -1, reverses inequality sign
x(750x - 15000) > 20
750x > 15000
x > 15000/750
x > 20
:
Graphically, no of items on the x axis, profit on y axis 
{{{ graph( 300, 200, -10, 25, -50000, 100000, -750x^2+15000x) }}}

x > 20 is the answer