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EOC Practice #3

EOC Practice #3. SPI 3102.1.3. EOC Practice #3. Apply properties to evaluate expressions, simplify expressions, and justify solutions to problems. Simplify: 3(x – 2y) + 7(x + 3y) – 3y A. 4x – 30y B. 10x + 12y C. – 6x + 12y D. 7x – 10y.

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EOC Practice #3

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  1. EOC Practice #3 SPI 3102.1.3

  2. EOC Practice #3 • Apply properties to evaluate expressions, simplify expressions, and justify solutions to problems.

  3. Simplify: • 3(x – 2y) + 7(x + 3y) – 3y • A. 4x – 30y • B. 10x + 12y • C. –6x + 12y • D. 7x – 10y

  4. Simplify: • –4(2x – 3y) + 4x – 2(x + 6) • A. –6x • B. –6x + 24y • C. 12y – 12 • D. –6x + 12y – 12

  5. If x = –2, y = 5, and z = 3, • evaluate the following expression. • x4– 5y + 2(x – z)2 • A. 50 • B. –41 • C. 41 • D. 63

  6. Simplify: • 5x6(2x4– x3 + 7x2– 4x) • A. 10x10– 5x9 + 35x8– 20x7 • B. 10x24– 5x18 + 35x12– 20x6 • C. 7x24– 4x18 + 12x12 + x6 • D. 20x34

  7. 5. If x = –4 and y = 8, evaluate the following expression. A. 1544 B. –1500 C. –200 D. 1540

  8. Identify the property used to • simplify the following expression. • 3(x – 7) = 3x – 21 • A. Associative Property of Addition • B. Commutative Property of Addition • C. Distributive Property • D. Identity Property of Addition

  9. What is the value of the • expression when x = 6 and • y = –4? • 8xy2 – 5x2 • A. –948 • B. 588 • C. 324 • D. 35,964

  10. David wants to buy a new bicycle • that cost $295 before a 40% • discount. He finds the cost after • the discount, in dollars, by • evaluating 295 – 295(0.40). His • brother Michael finds the same cost • by evaluating 295(1 – 0.40). What • property can be used to justify that • these two expressions represent • the same cost after the discount?

  11. A. associative property B. commutative property C. distributive property D. subtraction property of equality

  12. The Answers

  13. Simplify: • 3(x – 2y) + 7(x + 3y) – 3y • A. 4x – 30y • B. 10x + 12y • C. –6x + 12y • D. 7x – 10y

  14. Simplify: • –4(2x – 3y) + 4x – 2(x + 6) • A. –6x • B. –6x + 24y • C. 12y – 12 • D. –6x + 12y – 12

  15. If x = –2, y = 5, and z = 3, • evaluate the following expression. • x4– 5y + 2(x – z)2 • A. 50 • B. –41 • C. 41 • D. 63

  16. Simplify: • 5x6(2x4– x3 + 7x2– 4x) • A. 10x10– 5x9 + 35x8– 20x7 • B. 10x24– 5x18 + 35x12– 20x6 • C. 7x24– 4x18 + 12x12 + x6 • D. 20x34

  17. 5. If x = –4 and y = 8, evaluate the following expression. A. 1544 B. –1500 C. –200 D. 1540

  18. Identify the property used to • simplify the following expression. • 3(x – 7) = 3x – 21 • A. Associative Property of Addition • B. Commutative Property of Addition • C. Distributive Property • D. Identity Property of Addition

  19. What is the value of the • expression when x = 6 and • y = –4? • 8xy2 – 5x2 • A. –948 • B. 588 • C. 324 • D. 35,964

  20. David wants to buy a new bicycle • that cost $295 before a 40% • discount. He finds the cost after • the discount, in dollars, by • evaluating 295 – 295(0.40). His • brother Michael finds the same cost • by evaluating 295(1 – 0.40). What • property can be used to justify that • these two expressions represent • the same cost after the discount?

  21. A. associative property B. commutative property C. distributive property D. subtraction property of equality

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