8.1-8.2!!!

I really liked 8.1 and understood it.  I liked how Domain has to do with X and Range has to do with Y, just like it always does.  So that makes it nice and easy to remember.  The Distance part at the end of 8.2 also made sense.  What I didn't quite understand was Transitive and how exactly that works.  I really understood the reflective property.