A perfectly competitive firm has the cost function TC = 1000 + 2Q + 0.1 Q2. What is the lowest price at which this firm can break even
First derive MC:
Then derive ATC:
Now set: MC = ATC
2 + 0.2Q=
Take the square root of both sides and find:
Q = 100
We know that the firm produces were Price = MR = MC, so we will derive the lowest price from the MC function:
MC = 2 + 0.2Q
We know Q = 100: Substitute in the equation
MC = 2 + 0.2 (100) = 2 + 20 = 22
Price = 22
Therefore, the lowest price at which the firm can breakeven is 22.
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