Borrowing a teaching technique that I have learned from Dan Meyer; I will be taking the graphs from this article to create an introductory problem for my students to wrestle with. Relevant systems of linear equations are much more engaging than textbook word problems.
http://public.iwork.com/document/?a=p1090410687&d=Comcast_Vs_Netflix_47_hulu.key
http://flowingdata.com/2012/02/09/why-i-want-to-quit-cable/