You may want to see my FREE website for additional non-traditional explanation on INEQUALITIES. The easiest way to find the website is to use the easy-to-remember and easy-to-spell link www.mathinlivingcolor.com. Near the bottom of this page is a link that takes you to my Homepage.
On my Homepage, look for the link "Basic, Intermediate, and College Algebra: One Step at a Time." Choose "Basic Algebra" and look in "Chapter 1" for "Section 1.11 Inequalities." I think you will really like the "Math in Living Color" pages that go with this section.
If you need to contact me, send me an Email at rapaljer@seminolestate.edu.
Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus