Name______

Review for Unit 7 Test

1. Write the opposite of each number.

-73 ______45 ______380 ______3 ______

Match the Quadrant with the coordinates

_____ 2. negative x and positive yA. Quadrant I

_____ 3. negative x and negative yB. Quadrant II

_____ 4. positive x and positive yC. Quadrant III

______5. positive x and negative yD. Quadrant IV

Day / Temperature (F)
Monday / -7
Tuesday / 10
Wednesday / -9
Thursday / 0
Friday / -1

6. Put the temperatures from the chart in order from coldest to warmest.

______

Each point is located in what Quadrant?

7. (0, 5)8 (-4, -7)9. (8.4, 0.6)10. (0,0)11. (-2, 4)12. (9, 0)

13. Complete the chart

Original Point / Reflect over the x-axis / Reflect over the y-axis / Reflect over both x-axis and y-axis
(2, 6)
(-5, 12)
(-5, -8)
(6, -7)
(0, 5)

Write the coordinate for each point.

14. Point A ______

15. Point B ______

16. Point C ______

17. Point D ______

18. What is the length of the rectangle?

19. what is the width of the rectangle?

20. What is the perimeter of the rectangle?

21. What is the Area of the rectangle?

Fill in the blank.

22. Negative numbers are located to the ______of 0 on a number line.

23. Positive numbers are located to the ______of 0 on a number line.

24. The absolute value is ALWAYS ______.

25. Opposite numbers are the same ______from zero.

Fill in the blank with <, >, =

26. -8.5 _____ -12.1 27. 0.23 ___ -0.2328. 7.9 ____ 7.6529. ____

30. ____31. - ____ -32. -90.26 _____ -85.1233. 5.6 ___5.15

True or False?

34. l -19 l = -1935. l -12.7 l = 12.736. l -6.2 l = -6.237. l21 l = l-21l

38. l -32 l = 3239. l0 l = 0 40. l6.5 l = -6.5 41. l12 l = l-12 l 42. l81l = l-18l

43. White Mouse -12,500Red Hawk 6,000Blue Baby -600Green Rest 11,750

Write the elevations from the chart in order from least to greatest.

______

44. Graph each number AND THEIR OPPOSITES -2, 0.7,

45. Gracie’s lunch balance is - $2.50, Kate’s balance is $12, Bailey’s balance is $-0.75, and Jaden’s is $4.75 Who owes the MOST money? ______

46. Which list of ordered pairs is correct for the following points?

A. A(1, 2) ; B(4, -1); C(-2, -3); D (0,3)

B. A(1, 2) ; B(-1, 4); C(-3, -2); (0,-3)

C. A(2, 1) ; B(4, -1); C(-3, -2); (-3,0)

D. A(1, 2) ; B(4, -1); C(-3, -2); (0,-3)

Evaluate each

47. = _____ 48. -(-(-12))=______49. -(-(5.8)) = _____50. -3.2 = _____

51. =_____52. l8.1l =_____ 53. l-6.4l = _____ 54. = _____

Write each situation at a rational number.

55. Callie is $20 in debt. ______56. The temperature when up 16 degrees today. ______

57. Jesse won $45. ______58. The temperature is 11 degrees below zero. ______

Compare each situation using <, > =

59. Colin owes $17 and Alexus owes $2.50.

60. Sam has $15 saved and Ashlynn owes her mom $20.

61. A plane is at 500ft and a whale is at 1,000ft below sea level.

62. Find the distance between D and C.______

63. Find the distance between A and D.______

64. Find the perimeter of figure ABCD.______

65. Point B on the graph is reflected over the y-axis, what are the new coordinated? ______

66. Point A on the graph is reflected over the x-axis, what are the new coordinated? ______

67. Point C on the graph is reflected over BOTH the x-axis and the y-axis, what are the new coordinated? ______

68. Colin has $40.25 and spends $15.60 How much does he have now? _____

69. A bird is 2,000 feet above sea level and drops to 750 feet above sea level. How many feet did the bird drop? _____

70. The temperature is 8 degrees below zero and then rises 20 degrees. What is the temperature now? ____

71. ABCD is a rectangle. Three of the four vertices of a rectangle on the coordinate plane are A (5, 4) B (5, -1) C ( -3, 4)

What is the fourth vertex of this rectangle? ( , )

72. ABC for a RIGHT TRIANGLE. The coordinates of point A are (2, -3), and the coordinates of point B are (-1, -3). Point C in Quadrant I and side AC is 8 units long. What are the coordinates of Point C.

73. Graph the two numbers that have an absolute value of 0.25