Solve the problem.
-The profit from the expenditure of $x$ thousand dollars on advertising is given by $P(x)=1000+15 x-2 x^{2}$. Find the marginal profit when the expenditure is $x=7$.
A) 1000 thousand dollars/unit
B) -13 thousand dollars/unit
C) 105 thousand dollars/unit
D) 77 thousand dollars/unit

Question

Quizplus · Accepted Answer

The marginal profit is the derivative of the profit function, which is $P'(x)=15-4x$. When $x=7$, the marginal profit is $P'(7)=15-4(7)=-13$.

Solve the Problem xxx Thousand Dollars on Advertising Is Given By P(x)=1000+15x−2x2P(x)=1000+15 x-2 x^{2}P(x)=1000+15x−2x2

Solve the Problem $x$ Thousand Dollars on Advertising Is Given By $P(x)=1000+15 x-2 x^{2}$