Sample Exam Answers

Okay guys, here is a partial key to the sample exam. Some questions may not be listed below -- Monday was devoted to answering your questions on this exam so this is a bonus. It's not a full blown solutions manual, but let me know if it helps.


1. m=4
2. intersecting
3. y=4x-13
4. e
5. x=1
6. y=4
7. m=3/2, y intercept: (0,-4)
8. is a graph (use your calculator to check your graph if you have a TI)
9. y = 3.68x + 32.76, year 2002

12. A. d, B. 2100, C. 8
13. y=(3/4)*x -2
14. x=-1, y=-1

16. x=2, y=-5, z=3

18. P = 1655.46

21. P =1157.74
22. i =7.28%