Holt Example 1

http://my.hrw.com/math06_07/nsmedia/lesson_videos/alg2/player.html?contentSrc=6466/6466.xml

Holt Example 2

http://my.hrw.com/math06_07/nsmedia/lesson_videos/alg2/player.html?contentSrc=7154/7154.xml

Holt Example 3

http://my.hrw.com/math06_07/nsmedia/lesson_videos/alg2/player.html?contentSrc=7155/7155.xml

Holt Example 4

http://my.hrw.com/math06_07/nsmedia/lesson_videos/alg2/player.html?contentSrc=7156/7156.xml