Look at the chart again and, without looking back at what you have just read, attempt to answer the following two questions by taking readings off your chart:

(i ) What would the total costs of the firm be at 

(a) 2,000 units, 

(b) 7,000 units, 

(c) 8,500 units?

(ii) What is the revenue for 

(a) 3,000 units, 

(b) 6,000 units, 

(c) 7,500 units?

Before proceeding further, look at the answers to this activity.