1. Warm Up Find the solution to each linear system.
–x + y = 3 2) y = 2x + 0
x + y = x – y = 8
3) -3x + 5y = 7 4) -2x – 6y = -12
3x – 5y = x + 6y = 12

2. Systems of Linear Inequalities
6.8
Systems of Linear Inequalities
Goal
Graph a system of linear inequalities

3. y= __ x + __ . Where __ is equal to
Slope-Intercept Form
y= __ x + __ . Where __ is equal to
the ____. While the __ is equal to the
__ intercept.
Inequality Signs
< < > > m
slope
m b b y
Less than or equal to
Less than
Greater than or equal to
Greater than

4. Graph a System of Two Linear Inequalities (y = mx + b)
EXAMPLE 1
Graph the system of linear inequalities. x y
m = -1 , b = 3
m = 1/2, b = -2

5. Graph a System of Two Linear Inequalities
EXAMPLE 2
Graph the system of linear inequalities. x y

6. Graph the system of linear inequalities.
Try It Out!!!
EXAMPLE 3
Graph the system of linear inequalities. x y

7. Homework
Page 343
#7 – 15
Choose Any 3 Problems

8. 7.4 Linear Systems & Problem Solving
1. Indicate what each variable stands for.
Write a system of 2 equations that can be used to solve the problem.
Solve the system.

9. Example #1
1. You are selling tickets for a high school basketball game. Student tickets cost $3 and general admission tickets cost $5. You sell 350 tickets and collect $ How many of each type of ticket did you sell?

10. Homework
Finish Worksheet