1. 3.4 Solving Systems of Linear Inequalities
Objectives: Write and graph a system of linear inequalities in two variables.
Write a system of inequalities in two variables for a given solution region.
Standard: K. Apply an appropriate technique to graph a linear inequality in two variables.

2. A system of linear inequalities is a collection of linear inequalities that use the same variables.
The solution is any ordered pair that makes each of the inequalities in the system a true statement.
When graphing a system of linear inequalities, shade the part of the graph where all of the solution regions for each individual linear inequality overlap.

4. * b. x ≥ y ≥ 0 y > -x y ≤ -2x + 3

5. C.

6. * d. y > -x – y > x y ≤ 3

7. Ex 2. Graph each inequality in a coordinate plane.
a. –3 ≤ x ≤ 2

8. b. –1 < y < 3

9. * c. 0 < x ≤ 4

10. * d. 1 ≤ y < 4

13. Writing Activities

14. PSSA Warm-Up Question Alg II – Chp. 3
Standard G Analyze and explain systems of equations and inequalities.
Solve this system of inequalities:
2x + y < y < x - 4

17. Homework
Pg #10-44 even