NAME
DATE
2-8
PERIOD
Practice
Graphing Linear and Absolute Value Inequalities
Graph each inequality.
1. y ≤ - 3
2. x > 2
3. x + y ≤ -4
y
2
x
-2
-4
-4
-2
1
x+3
5. y < −
4. y < -3x + 5
-4
2
x
O
-2
-2
9. y > -3 ⎪x + 1⎥ - 2
8. y > ⎪x⎥ - 1
y
y
2
y
4
2
4
6
-2
-4
2
x
-4
-2
2
O
2
4x
-4
4x
-2
-6
10. COMPUTERS A school system is buying new
computers. They will buy desktop computers
costing $1000 per unit, and notebook computers
costing $1200 per unit. The total cost of the
computers cannot exceed $80,000.
a. Write an inequality that describes this situation.
1000d + 1200n ≤ 80,000
80
Computers Purchased
70
60
50
40
30
20
10
b. Graph the inequality.
c. If the school wants to buy 50 of the desktop
computers and 25 of the notebook computers,
will they have enough money? yes
Chapter 2
-2
-2
O
-4
x
2
O
-2
-2
x
7. x - 3y ≤ 6
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
2
2
-2
O
y
y
-4
O
6. y - 1 ≥ -x
2
y
-2
-2
x
2
O
-2
x
O
-2
-4
Lesson 2-8
2
O
Notebooks
-2
y
y
53
0
10 20 30 40 50 60 70 80 90 100
Desktops
Glencoe Algebra 2