Why is PPC linear?

Related questions

1. What do points on the PPC represent?
2. What does a PPC curve show?
3. What would cause the PPC to shift outward?
4. What is slope of PPC?
5. What is production possibility curve explain with diagram?
6. What are the assumptions of PPC?
7. What is the properties of PPC?
8. Why is PPC called opportunity cost?
9. Can a PPC line be straight?
10. How is PPC affected by unemployment in the economy with diagram?

Tags

1. #typical
2. #curve
3. #constant
4. #costs
5. #origin
6. #other
7. #amount
8. #bowed
9. #forgone
10. #rises
11. #increasing
12. #shows
13. #straight
14. #produced
15. #however
16. #opportunity
17. #linear