5. 100 400 500 400 500 400 500 300 200 100 Essential Skills Systems & Matrices Linear Equations & Functions Quadratics Potpourri

6. 100 400 500 400 500 400 500 300 200 100 Essential Skills Systems & Matrices Linear Equations & Functions Quadratics Potpourri

7. Essential Skills - $100 Point A is to be graphed in a quadrant, not on an axis, of the standard (x, y) coordinate plane. If the x-coordinate and the y-coordinate have opposite signs, then point A must be located in what quadrant(s)?

8. Essential Skills - $100 Answer Quadrant II or IV only

9. Essential Skills - $200

10. Essential Skills - $200 Answer

11. Essential Skills - $300

12. Essential Skills - $300 Answer −20

13. Essential Skills - $400 Mr. Dietz is a teacher whose salary is $22,570 for this school year, which has 185 days. In Mr. Dietz’s school district, substitute teachers are paid $80 per day. If Mr. Dietz takes a day off without pay and a substitute teacher is paid to teach Mr. Dietz’s classes, how much less does the school district pay in salary by paying a substitute teacher instead of paying Mr. Dietz for that day?

14. Essential Skills - $400 Answer

15. Essential Skills - $500 Members of the fire department lean a 30-foot ladder against a building. The side of the building is perpendicular to the level ground so that the base of the ladder is 10 feet away from the base of the building. To the nearest foot, how far up the building does the ladder reach?

16. Essential Skills - $500 Answer

17. Systems & Matrices - $100

18. Systems & Matrices - $100 Answer 2

19. Systems & Matrices - $200

20. Systems & Matrices - $200 Answer 42

21. Systems & Matrices - $300 What system of inequalities is represented by the shaded region of the graph below?

22. Systems & Matrices - $300 Answer

23. Systems & Matrices - $400 What expression must the center element of the matrix below contain so that the sums of each row, each column, and each diagonal are equivalent?

24. Systems & Matrices - $400 Answer 2x2x

25. Systems & Matrices - $500 The cost of a hamburger and a soft drink together is $2.10. The cost of 2 hamburgers and a soft drink together is $3.50. What is the cost of a soft drink?

26. Systems & Matrices - $500 Answer

27. Linear Equations & Functions - $100

28. Linear Equations & Functions - $100 Answer

29. Linear Equations & Functions - $200 What is the slope-intercept form of 8x – y – 6 = 0?

30. Linear Equations & Functions - $200 Answer y = 8x – 6

31. Linear Equations & Functions - $300 The length L, in meters, of a spring is given by the equation below, where F is the applied force in newtons. What force, in newtons, must be applied for the spring’s length to be 0.18 meters?

32. Linear Equations & Functions - $300 Answer 0.225

33. Linear Equations & Functions - $400 What is the y-intercept of the line in the standard (x, y) coordinate plane that goes through the points (−3, 6) and (3, 2)?

34. Linear Equations & Functions - $400 Answer

35. Linear Equations & Functions - $500 A restaurant occupying the top floor of a skyscraper rotates as diners enjoy the view. Ling and Sarah notice that they began their meal at 7:00 P.M. looking due north. At 7:45 P.M. they had rotated 180° to a view that was due south. AT this rate, how many degrees will the restaurant rotate in 1 hour?

36. Linear Equations & Functions - $500 Answer 240°

37. Quadratics - $100 What is the solution set to the equation above?

38. Quadratics - $100 Answer

39. Quadratics - $200 If a rectangle measures 54 meters by 72 meters, what is the length, in meters, of the diagonal of the rectangle?

40. Quadratics - $200 Answer

41. Quadratics - $300 Sketch the graph of the function f(x) as defined below.

42. Quadratics - $300 Answer

43. Quadratics - $400 *Daily Double!* If (x – 7) is a factor of 2x 2 – 11x + k, what is the value of k?

44. Quadratics - $400 Answer

45. Quadratics - $500 Which of the following quadratic equations has solutions x = 6a and x = −3b?

46. Quadratics - $500 Answer

47. Potpourri - $100

48. Potpourri - $100 Answer

49. Potpourri - $200

50. Potpourri - $200 Answer

51. Potpourri - $300 The temperature, t, in degrees Fahrenheit, in a certain town on a certain spring day satisfies the inequality shown below. Write a compound inequality that shows the temperatures, t, in degrees Fahrenheit, that satisfy this range.

52. Potpourri - $300 Answer

53. Potpourri - $400 The normal amount of lead in a certain water supply is 1.5 × 10 −5 milligrams per liter. Today, when the water was tested, the lead level found was exactly 100 times as great as the normal level, still well below the EPA’s action level. What concentration of lead, in milligrams per liter, was in the water tested today?

54. Potpourri - $400 Answer

55. Potpourri - $500 A certain perfect square has exactly 4 digits (that is, it is an integer between 1,000 and 9,999). The positive square root of the perfect square must have how many digits?

56. Potpourri - $500 Answer

58. Final Jeopardy Category: Linear Equations

59. Final Jeopardy Question Kaya drove 200 miles in 5 hours of actual driving time. By driving an average of 10 miles per hour faster, Kaya could have saved how many hours of actual driving time?

60. Final Jeopardy Answer