Chapters 1, 2, and 3 are done... AGAIN!

Hi folks!

With a sigh of relief, I am happy to report that I finished my narrative for Section 1.8 (nee Section 5.1) and have ret-conned it into sections 2.1, 2.2, 2.3, and 3.1.  Section 1.8 is a colossal 20 pages with over 50 graphs - no wonder it took me nearly 2 weeks to write!  Since most of it is pictures, however, I am confident it will take students less than that to actually read it.  I will now see what Jeffrey makes of it all.  We will update the exercise sets in those sections accordingly.  Today I hope to start working on Chapter 5... AGAIN!  Function composition and inverse functions should be a walk in the park;  should the operative word.  I uploaded the latest revision here.