Final answer:
To produce 9 units of output, the firm should use Process 1, while for 5 units of output, the firm should also use Process 1.
Step-by-step explanation:
To determine how much the firm should produce with each process, we need to compare the marginal costs of the two processes.
For 9 units of output:
- MC₁ = 0.4O₁ = 0.4(9) = 3.6
- MC₂ = 3 + 0.2O₂ = 3 + 0.2(9) = 4.8
The firm should produce 9 units of output using Process 1 since its marginal cost is lower (3.6) compared to Process 2 (4.8).
For 5 units of output:
- MC₁ = 0.4O₁ = 0.4(5) = 2
- MC₂ = 3 + 0.2O₂ = 3 + 0.2(5) = 4
The firm should produce 5 units of output using Process 1 since its marginal cost is lower (2) compared to Process 2 (4).