Inverse demand
P = 140-0.5Q
Total revenue = TR (Q) = P*Q = (140-0.5Q) = 140Q -0.5Q2
TC (Q) = 2Q2+10Q+200
Marginal revenue = d(TR)/dQ
MR = d(140Q--0.5Q2)/dQ
MR = 140-Q
MC = Marginal cost = d(TC)/dQ
MC = d(2Q2+10Q+200)/dQ
MC = 4Q+10
1) For profit maximization output level
MC = MR
4Q+10 =140-Q
5Q = 130
Q = 26
2) Profit maximization price
P = 140-0.5Q
P = 140-(0.5*26) = 127$
3) Profit = TR - TC
Profit = (127*26) - (2*26*26+10*26+200)
Profit = 3302-1812 = 1490$
A monopolist faces inverse market demand of P = 140- TC(Q) = 20° + 10Q +...
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