2. Warm-up Solve by linear combination. 1. 2. 3.4.

4. 1.Every Person in your group needs a piece of paper, a pencil, graph paper, and a calculator. 2.Every Person in your group needs a letter, either T, R, A, S, or H. Put that letter and your group number at the top of your paper (both sides). 3.Every Person will write down the problem and solve it on their paper (you may get help from the members in your group). 4.Only the person whose letter I call will come up and show me their paper. 5.You get one point for a correct answer. 6.If correct, you can shoot for bonus points. 2 from the two point line or 3 from the three point line.

5. yes 1.

6. (1, 4) 2.

7. (5, 6) 3.

8. (2, 10) 4.

9. (2, 0) 5.

10. (3, -5) 6.

11. (2, -1) 7.

12. (-2, 0) 8.

13. (3, 1) 9.

14. (-3, -9) 10.

15. (-3, 7) 11.

16. (8, -2) 12.

17. (-2, 3) 13.

18. (4, -1) 14.

19. (12, -1) 15.

20. (-3, -5) 16.

21. (2, 1) 17.