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Which of the following graphs represents a function?

Which of the following graphs represents a function?. a. . b. c. d. 2. What is the slope of an equation parallel to y = 2x + 7? a . ½ b. – ½ c . -2 d. 2.

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Which of the following graphs represents a function?

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  1. Which of the following graphs represents a function? a. b. c. d.

  2. 2. What is the slope of an equation parallel to y = 2x + 7? a. ½ b. – ½ c. -2 d. 2

  3. 3. What is the slope of the following sequence? 3, 5, 7, 9, ……… a. ½ b. 2 c. -2 d. – ½

  4. 4. What is the slope between points (3, 5) and (6, -2)?A. -3/7 B. -7/3C. 3/7 D. 7/3

  5. 5. What is the graph of y = ½ x + 4 ? c. d. a. b. c. d.

  6. 6. Which does not show a relation?a. 2, 3, 5, 7, …. b.  3 85 7c. { (1,2), (2,4), (3,10) } d.

  7. 7. Graph -2x + 3y = 9. a. b. c. d.

  8. 8. Which table shows a linear function? a. b. c. d.

  9. 9. What is the linear equation for the following sequence? 4, 6, 8, 10, …..a. y = 2x b. y = 2x-2c. y = 2x+2 d. y = ½ x

  10. 10. Which equation would not represent a function?a. y = 2x b. y = 2/3x + 2 c. x = 4 d. 2x + y = 5

  11. 11. Which equation is not linear?a. 2x + 3y = 6 b. y = 4 c. y = x² + 3 d. x = 3

  12. 12. Which graph shows -3x + 2y = 6? a. b. c. d.

  13. 13. Which equation would be the graph of a horizontal line?a. y = x b. y = 4 c. x = 4 d. y = 2x + 1

  14. 14. If Mr. Dukes charges a flat fee of $5 and .50 per sheet to use his color printer, what is the slope of the line?a. the number of sheets printed b. the total cost to printc. the cost per sheet of paperd. the number of times you use the printer

  15. 15. Which table indicates a function? a. b. c. d.

  16. 16. Which graph shows a line perpendicular to y = 1/3x + 2?

  17. 17. Which of the following graphs represents a function? a b d c

  18. 18. What is the slope of an equation parallel to y = -3x + 9? a. 3 b. -3 c. 1/3 d. 9

  19. 19. What is the slope of the following sequence? 7, 11, 15, 19, ………a. ¼ b. -4 c. 4 d. -1/4

  20. 20. What is the graph of y = -1/4x - 2 ? b a c d

  21. 21. What is the slope between points (-4, 6) and (1, 2)?a. -4/5 b. 4/5 c. -5/4 d. 5/4

  22. 22. Which does not show a relation?a. { (2,3), (4,8), (7,9) } b. 7, 8, 6, 3, …… c d

  23. 23. Graph -5x + 2y = 10. b a c d

  24. 24. Jacob’s taxi cab company charges a flat fee of $12 and $1.50 per mile. What is the slope in this problem?a. the cost per mile b. the total cost for servicec. the number of passengersd. the number of times you use the cab company

  25. 25. What is the slope of a line perpendicular to y = x + 1?a. -3/4 b. 4/3c. -4/3 d. -1

  26. 26. The graphs of the equations 2x + 2y = 4 and 5x + 5y = 10 are:a. Identicalb. Parallelc. Intersectingd. Perpendicular

  27. 27. Compare the rates of change for the functions represented below.Function C Function D has a greater rate of change Function C has a greater rate of change Functions C and D have the same positive rate of change Functions C and D have the same negative rate of change

  28. 28. Which electric company should Michael choose to have a cheaper electric bill?Electric Company B : y = 0.02x + 25Electric Company A Company A Company B Both have the same rate Not enough information to tell

  29. 29. Which car accelerates faster per second, the red car or the blue car? Blue car: y = 9x – 6 • Red • Blue • Same • I don’t know

  30. 30. During Geography Quiz Bowl, for every time Abdul got an answer right, Sarah got 3 answers right. If Sarah and Abdul correctly answered 92 question, which systems of equations could be used to determine how many times Abdul answered correctly?A. 3s + a = 92 and a + s = 92B. 3a + s = 92 and a + s = 92C. 3a + a = 92 and a + s = 92D. 3s + s = 92 and a + s = 92

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