This is a worksheet with accompanying powerpoint presentation that deals with graphing linear functions and finding values for given functions. The scenario is based on online music retailers like "myTunes" "Amajon" and other silly names. I put one in there for myself, so you may want to change it to your own name.
The last 2 pages are the student worksheet so those should be printed out and copied. They are not intended to be used as an on-screen presentation.