Answers to Problems from "Changing Shapes With Matrices"

Note: All these transformations were done on 1/2" graph paper. The scans were changed slightly to make them readable.

Can you make up two matrices that would do the same thing as Mark's matrix?
In Albert's work below, what does his matrix do? How does the area of the new doggie compare to the original doggie?

To order Don's materials
to problems from "Changing Shapes With Matrices"
To choose sample problems from other chapters
Mathman home