University:
University of North Georgia
Course:
MATH 1113 | Precalculus
Academic year:

2021
Views:

145

Pages:

4
Author:

StellarSymphony

Midterm Review Chapter 1 Answers Pre-Calculus 1. 2 < x 8 2. x > 5 3. x 6. 7. ( 8. (0, 4) 9. 10. 11. 12. 13. 14. 15. 16. 18. (x – 5)(x – 1) 19. (6y – 7)(y + 3) 20. (3a – 4)(3a + 4) – 3)(2x + 1) 22. ( 23. ( 24. ( ( 26. ( 5. ( 17. ( 21. ( 25. ( 29. ( 33. 37. ( ( ( (√ 41. x = √ ) , -21 30. ( ( 5 4. ( ( 27. ( 31. 34. – 35. 38. x = 39. 42. 43. ( √ ( ( , 5) ( 28. ( 32. 36. ( ( ( √ 40. x = ½, -5 Midterm Review Chapter 2 Answers Pre-Calculus 1. 7 2. 3. 7. 1, 1, -12 12. 3 4. 8. 9. 13. 5. 0, 30, 44 6. und., 10a. -2, 1, -1 11. Inc: (-3, 0), b. D: [-5, 4], R: [-2, 4 Dec: ( 14. down 5 15. right 5, up 2 16. v. stretch by 3 ( 17. horiz. shrink by , reflect over x-axis 18. left 3, vert. shrink by factor of 19. Reflect over y-axis, horiz. stretch by 3, up 1 22. ( | 23. 25. ( ( | ( , left 3, 28. Profit: $88,500, 26. 40. 43. ( 34. √ 44. 41. ( ( ( 27. Local Max: (-1, 5) Local Min: (-4, -1) 30a. ( 31. b. 10 m by 10 m ; D: ( ( 32. 2x + 4 D: ( 37. x; D: ( One-to-one D: ( ( 36. ( Not one-to-one ( , right , ) vert. stretch by 2, up , D: ( ; D: ( ( area: 14400 ft2 33. 35. ( 29. 120 ft by 120 ft, Units: 15,000 21. 24. Axis: x = -2, Vertex: (-2, 3), Min. Value: 3 √ reflect over x-axis, up 10 20. 42. ( 38. 2 39. 101 Midterm Review Chapter 3 Answers Pre-Calculus 1. 5 – 2i 9. ( 2. -6 + 6i √ ) ( 3. 2 + i 4. 8 + 2i 17. 18. 3 21. 23. Pos: 6, 4, 2, or 0，Neg: 0 22. Pos: 3 or 1, Neg: 0 24. 25. 29. (x – 4 – i)(x – 4 + i) 32. (x + 3i)(x – 3i)(x + 3)(x – 3) 35. 8. 11. Zeros: 4, -3 E.B: As x , f(x) x As x , f(x) x 16. x – 4 20. 28. (x + 5i)(x – 5i) 7. 1 13. Zeros: -2, 2 E.B: As x , f(x) x As x , f(x) x 15. 19. 21 6. 4 + 3i 10. Zeros: -3, 5 E.B: As x , f(x) x As x , f(x) x √ ) 12. Zeros: 0, -4, 2 E.B: As x , f(x) x As x , f(x) x 14. 5. 33. ( 30. ( ( 26. √ √ ) ( √ ) √ )( √ ) ( 27. √ 31. (x + 2i)(x – 2i)(x + 2) 34. ( 36. x-int: (1.79, 0), (-2.79, 0) y-int: ( ) ( VA: x = -3 HA: none SA: y = x – 2 D: ( 37. x-int: (2, 0) y-int: (0, 2) VA: x = -2, 1 HA: y = 0 SA: none ( D: ( ( ( Midterm Review Chapter 9 Answers Pre-Calculus 1. ( 6. [ 11. [ ( ] ] 2. ( ( 7. [ ] 12. 6 3. [ 8. [ 13. 77 4. [ ] 9. [ ] 14. ] [ ] 5. Not possible ] 15. ( 10. No inverse 16. ( ) Midterm Review Chapter 4 Answers Pre-Calculus 1. ( 2. ( 3. ( ) 4. D: ( 5. D: ( R: ( HA: y = 1 6. D: ( 7. D: ( R: ( VA: x = 0 11. 16. 3 8. 17. 1 12. 18. 0 ( 20. 14. 21. 22. 5 31. 0.1783 38. 13.6 yrs 32. 0.5624 39.12.2% 33. ½ 40. 21.6% 42b) about 369 fish ( 15. 23. 3 27. 26. ( 37. 4 9. ( ) 13. 19. ½ 25. 30. 1.2325 ( R: ( VA: x = -4 10. 42a) R: ( HA: y = -3 ( √ 28. ) 34. 0.7183 41a) $7328.73 24. 99 29. 35. 3, -2 36. 5 41b) about 3.5 yrs 42c) about 31 yrs 43. 463.4 yrs Midterm Review Chapters 5 & 6 Answers Pre-Calculus 1. 2. 3. 16.5 4. 31.3 8. 471.2 ft 9. 5807.7 ft 10. 42.2 m 5. 374.6 11. positive 6. 63.7 12. positive √ 15. 16. √ 18. 23. ( √ 19. √ ) 24. 20. 25. √ 14. Q1 17. √ 21. 26. 0 √ √ √ ( 13. Q4 7. ( √ 27. -2 √ ) 22. 28. 0 √ ( ) 29. √