1. 7.1 solving linear systems by graphing

2. notes System of linear equations: two equations with two variables.
Ex: x + 2y = 5
2x – 3y = 3
Solution of system of linear equations: ordered pair that satisfies each equation.

3. Decide whether ordered pair is solution of the systems-t
(1,1), (-1,0) 2x + y = 3 X – 2y = -1
(-2,4), (3, -4) 4x + y = -4 -x – y = 1

4. Decide whether ordered pair is solution of the systems-st
(-6,-4), (3,-1) X – 3y = 6 2x – y = -8
(5,4), (4,1) X – y = 3 3x – y = 3

5. Use graph to solve linear equation-T/st
X + y = 0 -x + y = -2
-x + y = 4 X + y = 4

6. Graph and check to solve equation-t
X = 5 Y = -2 3x + y = 6 -x + y = -2

7. Graph and check to solve equation-t
Y = x – 2 Y = -x x + y = 1 Y = 5

8. Wrap up
Questions/comments
Hw: text pg. 401, #’s: evens, 35