## Precalculus (Math 19), Spring 2013

### Announcements:

• Page is not current, but is left up for archival purposes.

• Events for the rest of the semester:
• Fri May 10: Last quiz, on 6.4, 6.5, 11.1-11.2.
• Mon May 13: Last class.
• Tue May 14: Final exam review, 9:15-10:45am, MH224.
• Wed May 15: Final Exam, Wed May 15, 9:45-noon, our usual room. The final exam will be comprehensive.

• If you'd like to practice your gateway (algebra) skills, check out these online practice gateways from the University of Michigan. More precisely, to take a practice gateway online:
2. Click on the "Guest login" button on that page.
3. Click on the link marked "Take PracticeEntrGW test". This will bring up a gateway that you can take online and get automatic feedback and corrections.

Course greensheet, Information sheet.

### Course notes:

Course mechanics: Homework in Math 19, How to do well in college math. How the gateway affects your grade, Sample gateway, sample gateway answers and study guide.

### Topics for exams:

Exam 1, Exam 2, Exam 3. Exam 4, Final exam.

### Sample exams:

Exam 1, Exam 2, Exam 3, Exam 4, Final exam (edited Wed May 8).

### Homework:

Problems in boldface require you to write your final answer in the form of a complete sentence, using the correct units, or possibly explain/justify your answer, as appropriate.

 HW Due date Problems HW01 Fri Jan 25 (1.5) 22, 36, 48, 56, 74, 88; (1.6) 28, 40, 62. HW02 Mon Jan 28 (1.7) 26, 30, 46, 50, 60, 70, 82, 88, 94, 96. HW03 Wed Jan 30 (1.8) 28, 34, 50, 68, 72, 94, 102; (1.10) 8, 12, 20. HW04 Fri Feb 01 (1.10) 24, 32, 36, 48; (1.11) 12, 24, 32, 42. HW05 Mon Feb 04 (2.1) 22, 30, 38, 50; (2.2) 12, 22, 42, 50, 52; (2.3) 6. HW06 Wed Feb 06 (2.3) 8, 20, 32, 48; (2.4) 6, 14, 20, 26 (explain what (a) says, in a sentence), 30. HW07 Fri Feb 08 (2.5) 10, 16 (write answers in a complete sentence), 26, 40, 48, 50, 60, 64. HW08 Mon Feb 11 (2.6) 8, 12, 24, 28, 30, 38, 44, 48, 54. HW09 MON FEB 18 (2.7) 8, 16, 22, 28, 46, 56, 64, 76, 80, 86. HW10 Wed Feb 20 (3.1) 8, 16, 22, 26, 38, 48, 64, 66, 70. HW11 Fri Feb 22 (3.2) 2, 6, 8, 10, 14, 44, 48. HW12 MON FEB 25 (3.2) 18, 20, 22, 26, 32, graph P(x)=(x-2)2(x-3)(x-1000)3(x-1001)2, graph P(x)=-(x+1000)(x+999)(x-99)2(x-100)3. In each problem, indicate cut/bump/slide at all zeros. HW13 MON FEB 25 (3.3) 8, 10, 20, 30, 42, 50, 62, 64. HW14 Wed Feb 27 (3.4) 10, 14, 20, 26, 32, 38, 48, 58. HW15 Fri Mar 01 (3.5) 18, 30, 38, 46, 58, 68; (3.6) 10, 32, 40, 48. HW16 Mon Mar 04 (3.6) 54, 58; (3.7) 8, 14, 20, 24, 26, 34. HW17 Wed Mar 06 (3.7) 42, 46, 50, 56, 60, 64 (not 66). HW18 Mon Mar 11 (4.1) 12, 18, 22, 28, 34, 48; (4.2) 6, 14, 22, 24. HW19 Wed Mar 13 (4.3) 6, 12, 18, 22, 28, 32, 42, 48, 56, 60. HW20 Fri Mar 15 (4.4) 12, 16, 22, 28, 34, 40, 48, 52, 54, 60. HW21 Mon Mar 18 (4.5) 12, 22, 28, 32, 42, 48, 56 (valueS of x), 72, 82, 88(a,b). HW22 Wed Mar 20 (4.6) 2*, 10*, 18*, 24*, 26*, 32*, 36*. (* = write final answer in a complete sentence, using correct units) HW23 Fri Mar 22 (5.1) 6, 14, 18, 28, 34, 36, 40, 44, 52; (5.2) 4. HW24 Wed Apr 03 (5.2) 8, 14, 20, 26, 28, 32, 38, 48, 52, 58. HW25 Fri Apr 05 (5.2) 66, 70; (5.3) 4, 10, 14, 16, 20, 24, 26, 28. HW26 Mon Apr 08 (5.3) 32, 36, 40, 46, 48, 50, 78. HW27 Fri Apr 12 (5.4) 6, 8, 10, 18, 24, 30, 34, 40, 50, 54. HW28 Mon Apr 15 (5.5) 6, 8, 10, 18, 26, 28, 34, 38; (Inv trig notes) A, B. HW29 Wed Apr 17 (5.6) 14, 16, 22, 32, 34, 38, 42, 48. HW30 Fri Apr 19 (7.1) 12, 20, 26, 38, 44, 52, 62, 68, 74, 82. HW31 Wed Apr 24 (7.2) 4, 10, 16, 20, 24, 34, 46, 50, 54. HW32 Wed Apr 24 (7.3) 4, 6, 8, 10, 14, 20, 24, 34, 46, 50. HW33 Fri Apr 26 (6.1) 10, 24, 30, 38, 44, 50; (6.2) 8, 14 (exact value), 22, 34. HW34 Mon Apr 29 (6.2) 52, 62; (6.3) 6, 8, 20, 32, 36, 42, 48, 52. HW35 Wed May 01 (6.4) 4, 16, 22, 26, 28, 32, 36, 40. HW36 Mon May 06 (6.5) 6, 12, 16, 20, 24, 28, 34, 42. HW37 Wed May 08 (6.6) 4, 10, 14, 18, 24, 28, 46, 52. HW38 Fri May 10 (11.1) 6 (justify), 16, 20 (ignore focus, directrix); (11.2) 8 (justify), 12, 16, 18, 24, 28, 36 (ignore foci and eccentricity). HW39 Mon May 13 (11.3) 6, 8 (justify), 12, 18, 24, 26, 36, 38 (ignore foci).

1.5-1.8, 1.10-1.11, 2.1-2.7, 3.1-3.3, 3.4 (skip pp. 256-259), 3.5-3.7, 4.1-4.6, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 7.1, 7.2 (skip tan formulas, A sin x + B cos x), 7.3 (skip tan and product-sum formulas), 6.1-6.6, 11.1-11.3.