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Pre-Calculus 11 Chapter 2 Study Guide Which point on the number line has an absolute value of 4? ____ 1. Z –10 –8 –6 A. X ____ 2. –4 –2 Y W X 0 2 B. W 4 6 8 10 C. Z D. Y What is the absolute value of the number represented by point Y on the number line? Y –5 –4 –3 A. –1 –2 –1 B. –2.5 0 1 2 3 4 C. 2.5 ____ 3. A. 3 What is the distance between –8 and 5 on a number line? B. 6 C. 13 ____ 4. Evaluate: A. 4.9 ____ 5. Evaluate: A. –7.3 D. 16.5 B. 4.1 C. 205.9 D. –194.1 ____ 7. Write this entire radical as a mixed radical: A. ____ 9. A. B. D. –13 C. –9.8 Write this mixed radical as an entire radical: B. C. ____ 8. D. 1 B. 2.21 ____ 6. A. A. 5 B. C. D. D. Write this entire radical as a mixed radical: B. C. D. For which values of the variable, x, is this radical defined? C. D. ____ 10. Write this radical in simplest form: Then state the values of the variables, a and b, for which the radical is defined. A. C. B. D. ____ 11. A. B. Which radical expression simplifies to ____ 12. A. B. C. D. Which radical expression simplifies to ____ 13. A. B. C. D. Which radical expression simplifies to ____ 14. A. Simplify by adding or subtracting like terms: B. C. ____ 15. Identify the values of the variable for which each radical is defined, then simplify. A. B. ____ 16. A. ____ 19. A. B. C. D. D. 0 Expand and simplify this expression: C. D. Expand and simplify this expression: A. B. ____ 18. ? C. D. A. B. ____ 17. ? C. D. C. D. Rationalize the denominator: B. Expand and simplify this expression: C. D. ____ 20. Expand and simplify this expression: A. C. B. D. ____ 21. Simplify this expression: A. B. C. D. ____ 22. A. ____ 23. A. Solve this equation: B. 9 4 x= x= 4 9 Solve this equation: B. ____ 24. Which equation has a real root? i) ii) iii) iv) A. ii B. iv ____ 25. C. x= 16 81 D. x= 81 16 C. D. C. iii D. i C. x = 7 D. x = 3 Solve this equation: A. x = 144 B. x = 12 Chapter 2 Practice Test Answer Section 1. ANS: REF: 2. ANS: REF: 3. ANS: REF: 4. ANS: REF: 5. ANS: REF: 6. ANS: REF: 7. ANS: REF: 8. ANS: REF: 9. ANS: REF: 10. ANS: REF: 11. ANS: REF: 12. ANS: REF: 13. ANS: REF: C 2.1 Absolute Value of a Real Number D 2.1 Absolute Value of a Real Number C 2.1 Absolute Value of a Real Number A 2.1 Absolute Value of a Real Number D 2.1 Absolute Value of a Real Number D 2.2 Simplifying Radical Expressions D 2.2 Simplifying Radical Expressions D 2.2 Simplifying Radical Expressions A 2.2 Simplifying Radical Expressions A 2.2 Simplifying Radical Expressions B 2.3 Adding and Subtracting Radical Expressions D 2.3 Adding and Subtracting Radical Expressions A 2.3 Adding and Subtracting Radical Exp 14. ANS: REF: 15. ANS: REF: 16. ANS: REF: 17. ANS: REF: 18. ANS: REF: 19. ANS: REF: 20. ANS: REF: 21. ANS: REF: 22. ANS: REF: 23. ANS: REF: 24. ANS: REF: 25. ANS: REF: D 2.3 Adding and Subtracting Radical Exp C 2.3 Adding and Subtracting Radical Exp D 2.4 Multiplying and Dividing Radical Exp B 2.4 Multiplying and Dividing Radical Exp A 2.4 Multiplying and Dividing Radical Exp A 2.4 Multiplying and Dividing Radical Exp B 2.4 Multiplying and Dividing Radical Exp B 2.4 Multiplying and Dividing Radical Exp C 2.5 Solving Radical Equations B 2.5 Solving Radical Equations B 2.5 Solving Radical Equations A 2.5 Solving Radical Equations