Consider two firms in a market.

The company Les pains d'autrefois has a cost function: CPA(q)=6q²+2q

The breads of tomorrow company has a cost function: CPD(q)=2q²+3

Question 1:

What is the marginal cost of each of these two firms? You must show your calculations.

Question 2:

Explain the consequences of this difference?

Question 3:

What is the average cost of each of these two companies? You must show your calculations.

Question 4:

Draw the short-term supply curve of the company Les pains d'autrefois. (4 points) Your graph must be accurate. Indicate at least two points on your curve. In the space provided, explain your approach. (4 dots)