NAME DATE PERIOD 2-8 Practice - Ms. Wilson's Math Classes

Lesson 2-8

NAME

2-8 Practice

DATE

PERIOD

Graphing Linear and Absolute Value Inequalities

Graph each inequality.

1. y - 3

y

-2 O -2

-4

2x

2. x > 2

y 2

-2 O -2

2x

3. x + y -4

y

-4 -2 O x -2 -4

4. y < -3x + 5

y -4 -2

-2 O 2 x

5. y < -12 x + 3

y 2

-4 -2 O x -2

6. y - 1 -x

y 2

-2 O -2

2x

7. x - 3y 6

y 2

O 2 4 6x -2 -4

8. y > x - 1

y 4

2

O -4 -2

-2

2 4x

9. y > -3 x + 1 - 2

y

-4 -2 O -2

-4

2 4x

-6

Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

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

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

Notebooks

Computers Purchased

80 70 60 50 40 30 20 10

0 10 20 30 40 50 60 70 80 90 100 Desktops

Chapter 2

53

Glencoe Algebra 2

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