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BUSINESS ALGEBRA

Here you will find information concerning the Business Algebra (1090-4) class for the Fall 2003 Semester, which meets on Monday, Wednesday, and Friday 9:40AM-10:30AM in LS 102.

If you have any doubts, problems, concerns, etc., feel free to send a message to the instructor.


News
and Announcements

  • Final Exam: the results will be available on Thursday 12/11. I will be in my office from 9 to 11 AM. Otherwise, you can contact me by email to make an appointment to pickup your test. Notice that I will be out of town from 12/19 to 1/2.

  • Two More Points! Everybody got two extra points on Test 3 in connection with the "closed + bounded" issue in problem (3b). So, for example, if your test grade was 57/74 it is now 59/74. But, please, if a problem like this arises on the final exam don't forget to check (and say!) if the region is closed and bounded.

  • Problem Sessions! Beginning Tuesday 10/7, every Tuesday 5-6PM we will meet in LCB 215 to discuss problems or answer any other questions that you may have. This is not mandatory and should not be considered part of the course: the only goal is to provide extra time for those who want to practice.

  • More information will be posted here as it becomes available.


Class by Class

  • 12/3: Completed the discussion of annuities and amortization (Sections 6.4 and 6.5). Last class, but there is a review session on Friday.
  • 12/1: Covered most of the sections on annuities (Sections 6.3 and 6.4).
  • 11/26: Test 3 was given.
  • 11/24: Completed the discussion of compounded interest (Section 6.2).
  • 11/21: Arithmetic and geometric sequences and series. Started the compound interest discussion (Sections 6.1 and 6.2).
  • 11/19: Quiz 11 was given. Simple interest and sequences (Section 6.1).
  • 11/17: Applications of logarithmic and exponential functions (Section 5.3).
  • 11/14: Discussed logarithmic functions (Section 5.2).
  • 11/12: Quiz 10 was given. Completed the discussion of exponential functions (Section 5.1).
  • 11/10: After answering some questions on linear programming problems, we started the discussion of exponential functions (Section 5.1).
  • 11/7: Completed the discussion linear programming problems (Section 4.3).
  • 11/5: Quiz 9 was given. Continued with linear programming (Section 4.3). Also, Test 3 was announced for Wednesday 11/26.
  • 11/3: Completed the discussion of inequalities in two variables and started the section on linear programming (Sections 4.2 and 4.3).
  • 10/31: Inequalities in two variables (Section 4.2).
  • 10/29: Test 2 was given.
  • 10/27: After answering a few questions we talked about linear inequalities in one variable (Section 4.1).
  • 10/24: Completed the discussion of inverse matrices, the last topic for the test (Section 3.4).
  • 10/22: Quiz 8 was given. Started the discussion of inverse matrices (Section 3.4).
  • 10/20: Completed the discussion of the Gauss-Jordan elimination method (Section 3.3).
  • 10/17: Gauss-Jordan elimination (Section 3.3).
  • 10/15: Quiz 7 was given. Matrix multiplication (Section 3.2).
  • 10/13: Matrices: multiplication (Section 3.2).
  • 10/10: Matrices: definition and basic operations (Section 3.1). Also, Test 2 was announced for Wednesday 10/29.
  • 10/8: Quiz 6 was given. More special functions: rational and piecewise defined functions (Section 2.4).
  • 10/6: Polynomial and power functions (Section 2.4).
  • 10/1: Quiz 5 was given. More applications of quadratic functions (Section 2.3).
  • 9/29: Quadratic functions and their applications (Sections 2.2 and 2.3).
  • 9/26: Quadratic functions (Section 2.2).
  • 9/24: Test 1 was given.
  • 9/22: Reviewed a problem on supply/demand and discussed quadratic equations (Sections 1.6 and 2.1).
  • 9/19: Reviewed some problems about cost analysis and supply/demand functions (Section 1.6). Also, a review class was scheduled for Tuesday 9/23 5-6PM in LCB 215.
  • 9/17: Quiz 4 was given. Solution of systems of three equations with three unknowns. Applications: cost, revenue and profit functions (Section 1.6).
  • 9/15: Systems of linear equations: substitution and elimination (Section 1.5).
  • 9/12: Equations of a line. Systems of linear equations: solving graphically (Sections 1.3 and 1.5).
  • 9/10: Quiz 3 was given. Linear functions: slope, perpendicularity. (Section 1.3). Test 1 was announced for 9/24.
  • 9/8: After practicing evacuation procedures, we continued with linear functions. (Section 1.3).
  • 9/5: Functions and linear functions. (Sections 1.2 and 1.3).
  • 9/3: Quiz 2 was given. Notion of function (definition by formulas, ordered pairs, tables and graphs). (Section 1.2).
  • 8/29: Solution of linear equations. (Section 1.1).
  • 8/27: Quiz 1 was given. Review integer powers and introduction to the solution of linear equations. (Sections 0.3 and 1.1).
  • 8/25: Review of real numbers, operations, etc. (Section 0.2).
  • 8/22: First day of class. Discussion of the course (see details on the syllabus. Review of sets (Section 0.1).
  • 8/20: No class this day.

Assigned Homework

Rules:The following homework is assigned but will neither be collected nor graded.

  • Chapter 6: section 1: 1, 3, 7, 9, 11, 13, 19, 23, 25, 29, 33, 39, 41; section 2: 1, 5, 7, 9, 13, 17, 21, 23, 25, 29, 31, 35, 37, 45; section 3: 5, 7, 9, 13, 21, 23, 29; section 4: 1, 5, 7, 9, 15, 21, 25, 33, 37; section 5: 3, 7.
  • Chapter 5: section 1: 1, 3, 5, 9, 15, 17, 21, 31, 33, 37; section 2: 1, 5, 7, 9, 13, 21, 23, 25, 27, 33, 35, 37, 41; section 3: 3, 7, 13, 15, 17, 19, 21, 23, 27, 29.
  • Chapter 4: section 1: 1, 3, 5, 9, 11, 15, 17, 23, 27, 29, 41, 49; section 2: 1, 3, 5, 9, 11, 13, 17, 21, 25, 31, 37, 39; section 3: 3, 5, 7, 9, 11, 13, 15, 19, 23, 27, 33, 37, 41, 45.
  • Chapter 3: section 1: 1, 2, 3, 5, 7, 9, 11, 17, 19, 21, 27, 33, 37, 41; section 2: 1, 3, 5, 7, 9, 11, 17, 23, 37, 43, 55, 60; section 3: 3, 5, 7, 13, 17, 19, 25, 27, 29, 33, 35, 39; section 4: 1, 3, 5, 7, 9, 13, 15, 17, 29, 31, 37, 43, 55, 59, 63.
  • Chapter 2: section 1: 7, 11, 25, 28, 35, 49, 59; section 2: 1, 2, 3, 5, 7, 9, 12, 14, 15, 17, 35, 37, 45; section 3: 1, 5, 8, 11, 15, 19, 20, 25, 27, 29; section 4: 1, 3, 7, 11, 14, 29, 31, 33, 37, 39, 49, 51.
  • Chapter 1: section 1: 1, 5, 10, 13, 17, 23, 31, 33, 39, 47, 61; section 2: 1, 3, 8, 9, 13, 18, 24, 25, 27, 30, 36, 37, 63; section 3: 1, 2, 3, 7, 8, 13, 14, 15, 17, 21, 23, 27, 33, 37, 39, 44, 47, 55, 63; section 5: 1, 3, 7, 8, 9, 12, 17, 29, 33, 37; section 6: 1, 4, 5, 9, 13, 15, 20, 24, 29, 31, 40, 43, 47.
  • Chapter 0: section 1: 2, 4, 8, 20, 30, 34, 52; section 2: 1, 10, 15, 20, 25, 27, 30, 43, 46, 49; section 3: 3, 4, 12, 15, 27, 33, 45, 62.

Other Stuff

Below you will find different references on the course (syllabus, etc.).


Other
(Sometimes) Useful Links


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