Graphing

Sources

Holt, Rinehart, & Winston. "Systems of Equations & Inequalities." http://my.hrw.com/math06_07/nsmedia/homework_help/alg1/
alg1_ch06_05_homeworkhelp.html (accessed August 15, 2010)

Kutztown University, "Numbered Number Lines." http://faculty.kutztown.edu/schaeffe/Graphics/NumberLines/
Numbered_Number_Line.doc (accessed 08/22/2010).

Stapel, Elizabeth. "Graphing Linear Inequalities." Purplemath. Available from http://www.purplemath.com/modules/ineqgrph.htm. Accessed 15 August 2010