MA112 – Section 108 Lab-Enhanced Precalculus Algebra 1:25 p.m. – 2:15 p.m. MWF Dr. Maria Byrne

1. MA112 – Section 108Lab-Enhanced Precalculus Algebra1:25 p.m. – 2:15 p.m. MWFDr. Maria Byrne As you enter, please introduce yourself to a couple other people in the class. Pick up a syllabus.

2. Today We Will • Go over syllabus. • Take pre-test.

3. Today We Will • Go over syllabus. • Take pre-test. For next Wednesday: read R1 in book.

4. Your Instructor • Instructor: Dr. Audi Byrne

5. Dr. Audi ByrnePhD in mathematics from the University of Notre Dame

6. Dr. Audi ByrneResearch area in biomathematics.(Dynamical systems and modeling. ) Cellular automata Stochastic Processes Multi-cellular Systems

7. Contacting Your Instructor Dr. Audi Byrne • Office: ILB 452 • Office Hours: 12:20am-1:10am daily And by appointment. • E-mail: abyrne@jaguar1.usouthal.edu

8. Course Information Byrne South Alabama • Course webpage: • www.southalabama.edu http://www.southalabama.edu/mathstat/personal_pages/byrne/MA112.htm

10. Lab-Enhanced MA112 Per week: • 3 Traditional Lectures: 50 minutes, Monday, Wednesday and Friday (1:25 p.m. – 2:15 p.m.) • 1 Lab Session: 50 minutes on Wendesday (11:15 a.m. – 12:05 a.m.)

11. Benefits of MyMathlab for Students At the University of Alabama: • http://www.youtube.com/watch?v=eLrEu4Eq3fs

12. Student Testimonials “Using MyMathLab to do homework was quite easy. Doing my homework online gave much practice for the test given in class. What I truly like about MML is that it tells how to work out each problem and what formulas to use. By using MML I found myself better prepared for the multiple choice final exam.”

13. Student Testimonials “I like that MyMathLab lays out all of the things that you need to study. It keeps things in order, keeps you on track, and helps you learn how to solve all of the problems needed to pass the course. I never would have thought that I could have this much help in math while taking it online, but I really think that MyMathLab is a great resource and everyone should use it.”

14. Student Testimonials “I was able to work at my own pace. I didn’t feel like I was pressured to keep up with anyone, and I didn’t feel like I was being held back by anyone.”

15. Textbook A custom edition taken from Precalculus: Graphs & Models, Fourth Edition by Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen and Judith A. Penna (2008) . You must purchase the book in order to acquire the student access code to MyMathlab, or buy it online with a credit card.

16. Semester at a Glance • Module 1 – What is a function? • Module 2 – Linear Functions • Module 3 – Operations with Functions Midterm on Friday, October 1st • Module 4 – Quadratic Functions • Module 5 – Polynomial Functions • Module 6 – Rational Functions • Module 7 – Exponential and Logarithmic Functions Final on Monday, December 13th

17. 7 Modules

18. Grading

19. Tutoring lab: The department offers a tutoring lab in Room 456 to all student taking mathematics and statistics classes. There is no lab fee. Please check the bulletin board outside ILB 325 for details.

20. Disabilities If you have a specific disability that may qualify you for academic accommodations: Visit the Office of Special Student Services.

21. Don’t Drop Without Dropping By The last drop day for the course is October 29th. If you get to the point where you are considering dropping the course, please speak with me, the department chair (Dr. Carter) or the assistant to the chair (Dr. Brick) before dropping.

22. Homework • Buy your book (binder or e-book) if you haven’t already. If you haven’t registered to MyMathlab, make sure you bring your student access code to lab on Friday. • Read Section R.1 The Real Number Line

23. 1-Minute Group Question In small groups of 2 or more, introduce yourselves and ask each other any questions you have about the course. (If no ones knows, you’ll have a chance to ask the instructor.)

24. Motivation…

25. Motivation… • The University Experience

26. Now time for thePre-test

27. Next time… • Why learn Precalculus Algebra? • The real number line.

28. Why study precalculus?(Why learn algebra?) • Precalculus = Algebra. • Needed preparation for precalculus and very useful in its own right. • Algebra: Understanding and describing relationships between quantities, especially in ways that help you find solutions to problems.

29. Algebra: Understanding and describing relationships between quantities, especially in ways that help you find solutions to problems. Relationships between quantities: • # of eggs and # of cartons • Cost of tuition and # of semesters attended. • Monthly gas bill and average temperature over the month.

30. # of eggs and # of cartons • In words: However many cartons you have, you have twelve times that many eggs. • Algebra: (algebraic equation) Let the number of cartons be represented by the letter C. Let the number of eggs be represented by the letter E. Then we have: E = 12  C.

31. # of eggs and # of cartons • Algebra: (graph)

32. Algebra: Understanding and describing relationships between quantities, especially in ways that help you find solutions to problems. • Suppose you have 20 feet of fencing. What is the largest area you can enclose? • If one side has length L, the other side must be 10-L. The area will be L(10-L).

37. Optimal Length of One Side