ZRef: Transformation (function notation)

Slight update on a transformation activity to graph transformations of a parent function into a child function using function notation. The graphing is done with math inputs and CL rather than entries in a graph object. Idea of update was to directly calculate the dilation, horizontal shift, and vertical shift from the student's input rather than using a list within a range to find the best answers. Also made a "key" on the sheet to allow the problem to be changed without going into the CL or graph entries to do it.

By Steve Zuklic