The total weekly cost (in dollars) incurred by Lincoln Records in pressing x compact discs is given by the following function.

Question

C(x) = 2000 + 2x - 0.0001x2
(0 x 6000)

(a) What is the actual cost incurred in producing the 1011st and the 1821st disc? (Round your answers to the nearest cent.)
1011st disc $ ??
1821st disc $ ??

(b) What is the marginal cost when x = 1010 and 1820? (Round your answers to the nearest cent.)
1010 $ ??
1820 $ ??