Assume that the following has a linear cost function. Find the cost function, C(x), revenue function, R(x), and profit function, P(x), where x is the number of items produced (or sold).

Fixed Cost | Marginal Cost | Item Sells

$200 | $19 | $31

What is the cost function?

C(x)= ______. (Simplify your answer)

What is the revenue function?

R(x)= ______. (Simplify your answer)

What is the profit function?

P(x)= ______. (Simplify your answer)