1. Algebra 2 Squares Chapter 9 Review Be sure to enable the content of the macros before you begin.

3. Simplify:

5. Solve:

7. The variables x and y vary inversely. Find the value of the constant of variation when x = -3 and y = -5.

9. Graph:

11. Simplify:

13. The variable z varies jointly with x and y. What is the value of the constant of variation when x = 4, y = 1 and z = 4?

15. Solve:

17. Graph the function:

19. You have taken three math exams and have an average of 80 points. If you can score 100 points on each of the rest of your tests, how many tests do you need to raise you average to 90 points?

20. 3 Tests

21. Simplify:

27. Solve:

29. Simplify:

31. Solve:

35. Add:

37. Solve:

40. No Solution

41. Find the least common denominator:

43. Find the value of x in the parallelogram.

45. Graph:

47. Simplify:

50. Already in simplified form.

51. Simplify:

53. You have taken 5 quizzes in your history class. You have an average score of 83 points. If you can score 95 points on each of the rest of your quizzes, how many quizzes do you need to take to raise your average to 90?

54. 7 quizzes

55. Simplify: