Question

Suppose the revenue (R), in dollars, from selling (x) clocks is  . The cost (C), in dollars, of selling (x) clocks is C(x)=0.1^2+7x+400.  Find the profit function P(x).

Answer 1

Profit function, P(x) = revenue (R)- cost (C)

$P(x)=x-(0.1x^2+7x+400)=-0.1x^2-6x-400$