HLRGAATPreISM_35799X_01_ch1

# HLRGAATPreISM_35799X_01_ch1 - Chapter 1 Linear Functions...

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Chapter 1: Linear Functions, Equations, and Inequalities 1.1: Real Numbers and the Rectangular Coordinate System 1. (a) The only natural number is 10. (b) The whole numbers are 0 and 10. (c) The integers are (d) The rational numbers are . (e) The irrational numbers are . (f) All of the numbers listed are real numbers. 2. (a) The natural numbers are . (b) The whole numbers are . (c) The integers are . (d) The rational numbers are . (e) The only irrational number is . (f) All of the numbers listed are real numbers. 3. (a) There are no natural numbers listed. (b) There are no whole numbers listed. (c) The integers are . (d) The rational numbers are . (e) There are no irrational numbers listed. (f) All of the numbers listed are real numbers. 4. (a) The natural numbers are 3, 18, and 56. (b) The whole numbers are 3, 18, and 56. (c) The integers are . (d) The rational numbers are . (e) The only irrational number is . (f) All of the numbers listed are real numbers. 5. The number 4,000,000,000 is a natural number, integer, rational number, and real number. 6. The number 92,000,000,000 is a natural number, integer, rational number, and real number. 7. The number is an integer, rational number, and real number. 8. The number is an integer, rational number, and real number. ] 3 ] 250 6 π ] 1 49 1 or ] 7 2 , ] .405, ] .3 , .1, 3, 18, and 56 ] 1 49 1 or ] 7 2 , 3, 18, and 56 ] 1 100 1 or ] 10 2 , ] 13 6 , ] 1, 5.23, 9.14 , 3.14, and 22 7 ] 1 100 1 or ] 10 2 and ] 1 1 12 ] 8, ] 14 7 1 or ] 2 2 , ] .245, 0, 6 2 1 or 3 2 , 8, and 1 81 1 or 9 2 ] 8, ] 14 7 1 or ] 2 2 , 0, 6 2 1 or 3 2 , 8, and 1 81 1 or 9 2 0, 6 2 1 or 3 2 , 8, and 1 81 1 or 9 2 6 2 1 or 3 2 , 8, and 1 81 1 or 9 2 ] 1 3 , 2 π , and 1 17 ] 6, ] 12 4 1 or ] 3 2 , ] 5 8 , 0, .31, .3 , and 10 ] 6, ] 12 4 1 or ] 3 2 , 0, 10

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9. The number is a rational number and real number. 10. The number is a rational number and real number. 11. The number is a real number. 12. The number is a real number. 13. Natural numbers would be appropriate because population is only measured in positive whole numbers. 14. Natural numbers would be appropriate because distance on road signs is only given in positive whole numbers. 15. Rational numbers would be appropriate because shoes come in fraction sizes. 16. Rational numbers would be appropriate because gas is paid for in dollars and cents, a decimal part of a dollar. 17. Integers would be appropriate because temperature is given in positive and negative whole numbers. 18. Integers would be appropriate because golf scores are given in positive and negative whole numbers. 19. 20. 21. 22. 23. A rational number can be written as a fraction, , where p and q are integers. An irrational number cannot be written in this way. 24. She should write . Calculators give only approximations of irrational numbers. 25. The point is in quadrant I. See Figure 25-34. 26. The point is in quadrant II. See Figure 25-34. 27. The point is in quadrant III. See Figure 25-34. 28. The point is in quadrant IV. See Figure 25-34. 29. The point is located on the y -axis, therefore is not in a quadrant. See Figure 25-34.
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## This note was uploaded on 09/24/2011 for the course MATH 1310 taught by Professor Marks during the Spring '08 term at University of Houston.

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HLRGAATPreISM_35799X_01_ch1 - Chapter 1 Linear Functions...

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