videos and review

P160, Review answers.

3. (1, 3)

5. (3, 8)

6. No Solution

10.  graph…

27. (1, 3, 2)

28. (2, -1, 5).

Videos.

Lesson 4.1 (3 videos in this link)… http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=age&wcsuffix=0401

 

Video 4.2 A… adding matrices, http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-524s.html

 

Video 4.2 B, additive inverse…  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-525s.html

 

Video 4.2 C,  subtract matrices… http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-526s.html

 

Video 4.2 D, solve a matrix equation.  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-527s.html

 

Video 4.2 E, find unknown matrix element… http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-528s.html