A) What is the number of units at break-even?B) What is the revenue at break-even?C) Find the revenue function. TR=________D) Find the cost function. TC =________

Justin is running a picture-framing business. Refer to the given break-even chart for his business and answer the following questions. Round off all values to the nearest whole number if required. 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 2 9 10 11 12 25