If a company's cost function for a product is
C(q) = 2280 + 3.8q + 0.004q2
and the revenue function is
R(q) = 12.2q − 0.002q2,
find the production level that maximizes profit.
................................. units
Given cost function:
C(q)=2280+3.8q+0.004q2
Revenue function: R(q)=12.2q-0.002q2
Profit function P(q)=R(q)-C(q)-----(1)
So, P(q)=(12.2q-0.002q2)-(2280+3.8q+0.004q2)
P(q)=12.2q-0.002q2-2280-3.8q-0.004q2
P(q)=8.4q-0.006q2-2280----(2)
Production level (q) which maximises profit can be found by differentiating P(q) with respect to q and equating the function to zero.
So, from (2)
[Since: , and
]
So the production level that maximises profit is
70 units.
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