Monday 2/22/10

Homework for period 1: Finsih page 155 graphing lines

Period 2: Finish the 3 selected problems

1) 2x + 3y = -3
-x - 2y = 2

2) -4x + y = 2
3x - 2y = 1

3) 2x - y = -1
-3x + 4y = -1