Name: ________________________ Class: ___________________ Date: __________ Chapter 2 Test ____ ____ 1. Based on the pattern, what are the next two terms of the sequence? 9, 15, 21, 27, . . . A. 33, 972 B. 39, 45 C. 162, 972 2. Based on the pattern, what are the next two terms of the sequence? 9 9 9 9 9, , , , ,... 5 25 125 625 9 9 9 9 A. , C. , 3125 3130 3125 15625 B. ____ 9 9 , 630 3130 D. 9 9 , 630 635 3. Based on the pattern, what is the next figure in the sequence? A. ____ D. 33, 39 B. C. D. 4. What is a counterexample for the conjecture? Conjecture: The product of two positive numbers is greater than the sum of the two numbers. A. 3 and 5 B. 2 and 2 C. A counterexample exists, but it is not shown above. D. There is no counterexample. The conjecture is true. ____ ____ 5. What is a counterexample for the conjecture? Conjecture: Any number that is divisible by 4 is also divisible by 8. A. 24 B. 40 C. 12 6. What is the conclusion of the following conditional? A number is divisible by 2 if the number is even. A. The sum of the digits of the number is divisible by 2. B. If a number is even, then the number is divisible by 2. C. The number is even. D. The number is divisible by 2. 1 D. 26 ID: A Name: ________________________ ____ ID: A 7. Write this statement as a conditional in if-then form: All triangles have three sides. A. If a triangle has three sides, then all triangles have three sides. B. If a figure has three sides, then it is not a triangle. C. If a figure is a triangle, then all triangles have three sides. D. If a figure is a triangle, then it has three sides. ____ 8. Draw a Venn diagram to illustrate this conditional: Cars are motor vehicles. A. C. B. ____ D. 9. A conditional can have a ____ of true or false. A. hypothesis C. counterexample B. truth value D. conclusion 2 Name: ________________________ ID: A ____ 10. Which statement is a counterexample for the following conditional? If you live in Springfield, then you live in Illinois. A. Sara Lucas lives in Springfield. B. Jonah Lincoln lives in Springfield, Illinois. C. Billy Jones lives in Chicago, Illinois. D. Erin Naismith lives in Springfield, Massachusetts. ____ 11. Use the Law of Detachment to draw a conclusion from the two given statements. If two angles are complementary, then the sum of their measures is 90°. E and F are complementary. A. mE + mF = 180 C. mE mF B. E is congruent to F. D. mE + mF = 90 ____ 12. What is the value of x? Identify the missing justifications. mPQR x 5, mSQR x 7, and mPQS 100. mPQR mSQR mPQS x – 5 + x – 7 = 100 2x – 12 = 100 2x = 112 x = 56 a. __________ b. Substitution Property c. Simplify d. __________ e. Division Property of Equality A. Angle Addition Postulate; Subtraction Property of Equality B. Angle Addition Postulate; Addition Property of Equality C. Protractor Postulate; Addition Property of Equality D. Protractor Postulate; Subtraction Property of Equality 3 Name: ________________________ ID: A ____ 13. BD bisects ABC. mABC = 7x. mABD = 3x 36. Find mDBC. A. 108 B. 72 C. 180 D. 252 ____ 14. Name the Property of Equality that justifies this statement: If l = m, then m l . A. Multiplication Property C. Subtraction Property B. Symmetric Property D. Transitive Property ____ 15. Which statement is an example of the Addition Property of Equality? A. If p = q then p s q s. C. If p = q then p s q s. B. If p = q then p s q s. D. p = q Use the given property to complete the statement. ____ 16. Transitive Property of Congruence If CD EF and EF GH , then ______. A. EF EF B. CD EF ____ 17. Multiplication Property of Equality If 5x 9 36, then ______. A. 5x 324 B. 5x 9 324 ____ 18. Substitution Property of Equality If y 5 and 7x y 11, then ______. A. 7(5) y 11 B. 7x 5 11 C. EF GH D. CD GH C. 36 5x 9 D. 36 5x 9 C. 7x 5 11 D. 5 y 11 ____ 19. Name the Property of Congruence that justifies the statement: If MN LK , then LK MN . A. Symmetric Property C. Reflexive Property B. Transitive Property D. none of these 4 Name: ________________________ ID: A ____ 20. Name the Property of Congruence that justifies this statement: If A B and B C, then A C . A. Transitive Property C. Reflexive Property B. Symmetric Property D. none of these ____ 21. Complete the two-column proof. Given: 12x 6y 5; x 5 Prove: 65 y 6 12x 6y 5; x 5 a. ________ 60 6y 5 b. ________ 6y 65 c. ________ 65 6 d. ________ y 65 y e. ________ 6 A. a. Given b. Substitution Property c. Addition Property of Equality d. Division Property of Equality e. Symmetric Property of Equality B. a. Given b. Substitution Property c. Addition Property of Equality d. Addition Property of Equality e. Symmetric Property of Equality C. a. Given b. Symmetric Property of Equality c. Addition Property of Equality d. Division Property of Equality e. Reflexive Property of Equality D. a. Given b. Substitution Property c. Addition Property of Equality d. Division Property of Equality e. Reflexive Property of Equality 5 Name: ________________________ ID: A ____ 22. Complete the two-column proof. Given: x 9 11 5 Prove: x 10 x 9 11 5 x 2 5 a. ________ b. ________ x 10 c. ________ A. a. Given b. Subtraction Property of Equality c. Division Property of Equality B. a. Given b. Subtraction Property of Equality c. Multiplication Property of Equality C. a. Given b. Addition Property of Equality c. Multiplication Property of Equality D. a. Given b. Addition Property of Equality c. Division Property of Equality ____ 23. What is the value of x? A. –16 B. 120 C. 60 D. 16 B. 36 C. 120 D. 60 ____ 24. What is the value of x? A. 84 6 Name: ________________________ ID: A ____ 25. m2 30. Find m4. A. 150 B. 30 C. 160 ____ 26. Find the values of x and y. A. x = 15, y = 17 C. x = 68, y = 112 B. x = 112, y = 68 D. x = 17, y = 15 7 D. 20 Name: ________________________ ID: A 27. What is the value of x? Identify the missing justifications. mAOC 150 mAOB mBOC mAOC a. ____ 2x 6(x 3) 150 b. ____ 2x 6x 18 150 c. ____ 8x 18 150 d. ____ 8x 168 e. ____ x 21 f. ____ 28. Solve for x. Justify each step. 4x 9 99 29. Complete the paragraph proof. Given: 1 and 2 are supplementary, and 2 and 3 are supplementary. Prove: 1 3 By the definition of supplementary angles, m1 m2 _____ (a) and m2 m3 _____ (b). Then m1 m2 m2 m3 by _____ (c). Subtract m2 from each side. You get m1 _____ (d), or 1 _____ (e). 8 Name: ________________________ ID: A 30. Complete the two-column proof. Given: 1 2, m1 130 Prove: m3 130 Drawing not to scale 1 2, m1 130 a. _____ m2 130 b. _____ m2 m3 c. _____ m3 130 d. _____ 31. Given: 1 and 2 are supplementary, and 1 3. Prove: 3 and 2 are supplementary. 9 ID: A Chapter 2 Test Answer Section 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. D C B B C D D A B D D B D B B D A B A A A B D D B A a. Angle Addition Postulate b. Substitution Property c. Distributive Property d. Simplify e. Addition Property of Equality f. Division Property of Equality 28. 4x 9 99 4x 9 9 99 9 4x 108 4x 108 4 4 x = 27 Given Addition Property of Equality Simplify Division Property of Equality Simplify 1 ID: A 29. a. 180 b. 180 c. Transitive Property (or Substitution Property) d. m3 e. 3 30. [4] a. Given b. Substitution Property c. Vertical Angles Theorem d. Substitution Property [3] three parts correct [2] two parts correct [1] one part correct 31. [4] 1 and 2 are supplementary, because it is given. So, m1 m2 180 by the definition of supplementary angles. 1 3 because it is given. So, m1 m2 by the definition of congruent angles. By the Substitution Property, m3 m2 180, so by the definition of supplementary angles, 3 and 2 are supplementary. OR equivalent explanation [3] one step missing OR one incorrect justification [2] two steps missing OR two incorrect justifications [1] correct steps with no explanations 2