1. Lesson 6­8.notebook
November 25, 2013
Assignment:
1­­>L6.8, pg. 384, #2 ­ 24 (evens) ­ Due Tomorrow (11/26)
2­­>Checkpoint 6.5­6.6 ­ Due Tomorrow (11/26)
3­­>Chapter 6 Test ­ Tuesday (12/3)

2. Lesson 6­8.notebook
Lesson 6.8 WarmUp:
Graph the following inequalities on a
coordinate plane. [Lesson 5.6]
1) y > x ­ 3
2)
y < 2x + 1
3)
y > ­2x + 6
4)
3x + 4y > 12
5)
3x ­ 2y < 4
November 25, 2013

3. Lesson 6­8.notebook
November 25, 2013
Lesson 6.8:
*system of inequalities ­ a set of 2 or more inequalities with the same
variables
**The solution set of a system of inequalities is represented by the
overlap, or intersection, of the graphs...shown by shading
***Remember...To graph a linear inequality:
< or > means a dashed line (not included)
< or > means a solid line (included)
And...test a point to determine which "half­plane" will
be shaded

4. Lesson 6­8.notebook
November 25, 2013
Lesson 6.8 examples:
Solve the system of inequalities by graphing.
A) y > ­2x + 1
y < x + 3
Y
X

5. Lesson 6­8.notebook
November 25, 2013
B) y < 3
x + y > 1
Y
X

6. Lesson 6­8.notebook
C)
November 25, 2013
2x + y > 2
2x + y < 4
Y
X

7. Lesson 6­8.notebook
November 25, 2013
Y
D)
3x ­ y > 2
3x ­ y < ­5
X

8. Lesson 6­8.notebook
E)
November 25, 2013
y < 3x
x ­ y < 8
Y
X