AutoTime, a manufacturer of electronic digital timers, has a monthly fixed cost of $46,000 and a production cost of $8 for each timer manufactured. The timers sell for $15 each.
(a)
What is the cost function C(x)?
C(x) =

(b)
What is the revenue function R(x)?
R(x) =

(c)
What is the profit function P(x)?
P(x) =

(d)
Compute the profit (loss) corresponding to production levels of 4,000, 7,000, and 13,000 timers, respectively. (Input a negative value to indicate a loss.)
4,000 timers $
7,000 timers $
13,000 timers $