Absolute Value Glencoe

Integers and Absolute Value (Pages 56–61) NAME ______________________________________________ DATE ____________ PERIOD _____ 2-1 2-1 © Glencoe/McGraw-Hill 9 Glencoe Pre-Algebra Chapter 2 a. Graph {0, 2, 4} on the number line. b. Simplify 2 4. Find the point for each 2 4 2 4 6 The absolute value of 2 number on the number is 2 and the absolute line and draw a dot. value of 4 is 4. Try These Together Graph each set of numbers on a number line. 1. {1, 1, 3} 2. {5, 7, 3, 2} 3. {4, 2, 2, 4} 4. {2, 3, 4, 3} HINT: Locate each point on the number line and draw a dot. An integer is a number that is a whole number of units from zero on the number line. The number that corresponds to a point on the number line is the coordinate of the point. The absolute value of a number is the distance the number is from zero. Two vertical bars are used to indicate the absolute value of a number. For example, 4 4 and 4 4. –2 –1 0 –5 –4 –3 negative Integers to the left of zero are less than zero. They are negative. Integers to the right of zero are greater than zero. They are positive. Zero is neither negative nor positive. positive 1 2 3 4 5 Write an integer for each situation. 5. a loss of $7 6. a distance of 50 meters 7. 35 minutes left in class Simplify. 8. 12 9. 8 10. 15 8 11. 12 2 12. 0 3 13. 5 2 14. 9 3 15. 1 16. 4 3 17. 6 7 18. 8 3 19. 14 8 Evaluate each expression if a 4, b 3 and c 2. 20. c b 21. a b 3 22. b c 23. a c 24. Standardized Test Practice An elevator went down 10 floors. What integer describes the trip the elevator made? A 20 B 10 C 10 D 20 Examples Practice Practice Examples –2 –1 0 –3 1 2 3 4 5 Answers: 1–4. See Answer Key. 5. 7 6. 50 7. 35 8. 12 9. 8 10. 7 11. 14 12. 3 13. 3 14. 12 15. 1 16. 7 17. 13 18. 5 19. 6 20. 5 21. 4 22. 1 23. 8 24. C

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Transcript of Absolute Value Glencoe

Integers and Absolute Value (Pages 56–61)

NAME ______________________________________________ DATE ____________ PERIOD _____

2-12-1

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a. Graph {0, �2, 4} on the number line. b. Simplify ��2� � �4�.Find the point for each ��2� � �4� � 2 � 4 � 6 The absolute value of �2 number on the number is 2 and the absolute line and draw a dot. value of 4 is 4.

Try These TogetherGraph each set of numbers on a number line.

1. {1, �1, �3} 2. {5, 7, �3, �2} 3. {4, 2, �2, �4} 4. {2, 3, �4, �3}HINT: Locate each point on the number line and draw a dot.

An integer is a number that is a whole number of units from zero on thenumber line.

The number that corresponds to a point on the number line is the coordinateof the point. The absolute value of a number is the distance the number is from zero. Two vertical bars are used to indicate the absolute value of anumber. For example, �4� � 4 and ��4� � 4.

–2 –1 0–5 –4 –3

negative

Integers to the left of zero are less than zero.They are negative.

Integers to the right of zero are greater than zero.They are positive.

Zero is neither negative nor positive.

positive

1 2 3 4 5

Write an integer for each situation.5. a loss of $7 6. a distance of 50 meters 7. 35 minutes left in class

Simplify.8. ��12� 9. �8� 10. ��15� � 8 11. �12� � ��2�

12. �0� � ��3� 13. ��5� � ��2� 14. �9� � ��3� 15. ��1�

16. ��4� � �3� 17. ��6� � �7� 18. �8� � �3� 19. �14 � 8�

Evaluate each expression if a � 4, b � 3 and c � �2.20. �c� � b 21. �a� � �b� � 3 22. �b� � �c� 23. �a� � �c�