1. FINAL EXAM REVIEW The answer key is on the last slide so you can check your answers.

2. 1. Describe the slope of a vertical line. A. Positive B. Negative C. Zero D. Undefined

3. 2. Simplify: A. 16a 6 b 2 B. C.D.

4. 3. Which of the following is NOT written in scientific notation? A. 7 x 10 -4 B. 3.54 x 10 6 C. 23.2 x 10 3 D. 8.01 x 10 -24

5. 4. The ordered pair (-1, 4) is a solution of which system of equations? A. x + y = 5 2x – y = -6 B. x + y = 3 2x – y = -6 C. x + y = 3 2x + y = -6 D. -x + y = 3 2x – y = 6

6. 5. What is the solution of the system of equations graphed below? A.(2, 1) B.(1, 2) C.No solution D.Infinite solutions

7. 6. What is the equation of the line which has a slope of 2 and passes through the point (3, –2)? A. y = -8x + 2 B. y = 2x + 7 C. y = 3x - 2 D. y = 2x - 8

8. 7. Which is a pair of perpendicular lines? A. y = 3x – 2B. y = 2x + 4 y = -3x + 5 y = 2x – ¼ C. y = ½ x + 3D. y = ¼ x – 1 y = -2x + 1 y = 4x – 1

9. 8. What is the equation of the line which passes through (-3, 0) and (-1, 4)? A. y = -3x + 4 B. y = 6x + 2 C. y = 2x - 6 D. y = 2x + 6

10. 9.Solve the system of equations. x = 3y + 2 x + 2y = 12 A. (8, 2)B. (2, 8) C. (42, 14)D. No solution

11. 10. What is the equation of the line which is parallel to y = 3x – 5 and passes through the point (2, -2)? A. y = 3x – 2B. y = 3x – 8 C. y = 3x + 4D. y = 3x + 2

12. 11. Simplify in scientific notation: (3 x 10 3 )(2 x 10 -7 ) A. 6 x 10 -4 B. 5 x 10 -4 C. 6 x 10 -21 D. 5 x 10 -21

13. 12. Factor the trinomial: x 2 – 3x - 4 A.(x – 3)(x – 1)B. (x + 4)(x – 1) C. (x – 4)(x + 1)D. (x + 3)(x – 1)

14. 13. Simplify: 2n 3 ∙ 3n 5 ∙ n 0 A.6n 8 B. 5n 15 C. 5n 8 D. 1

15. 14.Solve the proportion: A. w = 4B. w = 11 C. w = 1D. w = 8

16. 15. Convert to scientific notation: 302,000 A.3.02 x 10 5 B. 3.02 x 10 -5 C. 302 x 10 3 D. 0.302 x 10 -6

17. 16. Find the slope of the line which passes through (-3, 2) and (-1, 3). A. ½B. ¼ C. - ½ D. 2

18. 17. What is the equation of the graph below? A. x = 4 B. y = 4 C. x = -4 D. y = -4

19. 18. What is the equation of the graph below? A. y = 2x - 1 B. y = -½ x - 1 C. y = x - 2 D. y = -2x - 1

20. 19. Multiply: (x + 3)(x 2 + x – 1) A. x 3 + 4x 2 + 2x – 3B. x 3 + x 2 – 1 C. x 2 + 2x + 2D. 3x 2 + 3x – 3

21. 20.Factor by grouping: n 2 + 3n – 2n - 6 A. (n + 2)(n + 3)B. (n + 3)(n – 2) C. (n – 3)(n – 2)D. Can’t do

22. 21.What is the equation of the line which passes through the points (4, -1) and (0, 7)? A. y = 7x – 2 B. y = 2x + 7 C. y = -½ x + 7D. y = -2x + 7

23. 22. What is the solution of the system of equations graphed below? A.(2, 1) B.(1, 2) C.No solution D.Infinite solutions

24. 23. Describe the slope of a horizontal line. A. Positive B. Negative C. Zero D. Undefined

25. 24. Solve the system of equations. y = 4x – 2 2x + 3y = 22 A. (6, 2) B. (2, 6) C. (1, 2) D. None of the above

26. 25. How many solutions does the system have? y = 3x – 2 6x – 2y = 4 A. One B. Two C. None D. Infinite

27. 26. Convert to scientific notation. 0.0000442 A. 4.42 x 10 -5 B. 4.42 x 10 5 C. 4.42 x 10 -4 D. 44.2 x 10 6

28. 27. Simplify A. B. C. D.

29. 28. What is the equation of the graph below? A. x = 4 B. y = 4 C. y = x + 4 D. y = 4x + 4

30. 29. Which best describes the lines? y = ½ x + 5 -2x + y = 3 A. ParallelB. Perpendicular C. CoincidingD. None of the above (Same line)

31. 30. Solve for x. 2(x – 3) = x + 5 A. x = 8B. x = 5.5 C. x = 11D. x = -1

32. 31. Factor the trinomial. x 2 – 5x + 6 A. (x – 3)(x – 2) B. (x + 6)(x – 1) C. (x + 3)(x + 2) D. (x – 6)(x + 1)

33. ANSWER KEY See us before the exam if you have any questions on these! 1.D 2.C 3.C 4.B 5.A 6.D 7.C 8.D 9.A 10.B 11.A 12.C 13.A 14.B 15.A 16.A 17.C 18.D 19.A 20.A 21.D 22.C 23.C 24.B 25.D 26.A 27.B 28.B 29.D 30.C 31.A