MATH 147 001 (70804) Assignment Page -- Fall 2006

Sunday-Afternoon Office Hour for MATH 147
Posted: Sat Dec 9 15:00:02 MST 2006

Your instructor will be in the lounge just off the Albertsons-Library main entrance, 4--5 PM, Sunday, 12/10/06.

Rev5 has Gone Live
Posted: Mon Dec 4 11:33:46 MST 2006

Clicking the Rev5 button in the link strip above will whisk you off to an evolving list of review problems and suggestions for preparations for the final exam.

Assignment #57 (Due Tuesday, 12/5/06)
Posted: Mon Dec 4 06:25:55 MST 2006

• 9.6: 6, 8, 14, 17
• 3.6: Graph the function in problems 2, 6 and 16 showing the horizontal and vertical asymptotes labeled with their equations. Label also the x- and y-intercepts.
• 3.6: 12, 14

Assignment #56 (Due Monday, 12/4/06)
Posted: Thu Nov 30 17:14:51 MST 2006

Click here for some problems on Matrix-Multiplication Cramer and also some ancient Greek problems.

Assignment #55 (Due Friday, 12/1/06)
Posted: Wed Nov 29 17:55:52 MST 2006

• Page 661: 1 (by hand as in class on Wednesday, 11/29/06)
• 9.4: 48
• 9.5: 18, 20, 24, 26, 28

Assignment #54 (Due Thursday, 11/30/06)
Posted: Wed Nov 29 06:07:46 MST 2006

Click here for a description of the RREF, the reduced row-echelon form. And here for a worked-out Gauss-Jordan example computing the RREF to solve a system. We have other uses for the RREF in the offing.

Here are problems where the agenda is to use the Gauss-Jordan method to work the augmented matrix into its RREF. The RREF then is interpreted to either tell us about the system in question.

• 9.4: 26, 28
• 9.4: 40, 44

Tuesday 11/28/06 In-Class Quiz
Posted: Mon Nov 27 16:46:29 MST 2006
Questions and Key Posted: Tue Nov 28 08:51:39 MST 2006

The quiz checks to see if you know how to use the augmented-Matrix Gauss-Jordan Elimination method to solve a system of several linear equations in several unknowns. Examples: 9.4: 17 and 19 done as in class or as in Example 4, page 667.

Questions here. Answers here, maybe.

Assignment #53 (Due Tuesday, 11/28/06)
Posted: S n Nov 26 18:07:22 MST 2006

The handout from class before Thanksgiving is promoting Gauss-Jordan Elimination and the RREF (pages 667-672, Examples 4-7). We do not have time to study the back-substitution method presented earlier in the text.

The following problems are to be done using the augmented matrix, Gauss-Jordan Elimination, and RREF as in (pages 667-672, Examples 4-7).

• 9.4: 18, 20, 22
• 9.3: 32 (Yes, 9.3)
• 9.4: 46 (Yes, 9.4 again -- more unknowns than equations)

Gauss-Jordan Handout
Posted: Sun Nov 26 18:07:12 MST 2006
3/2 Typo Fixed: Mon Nov 27 15:02:13 MST 2006

In class before Thanksgiving, we were studying the Gauss-Jordan Elimination Method using an obsolete version of a handout.

Click here for an updated version which is supposed to point to the proper pages and sections of our current text.

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