Come on is there anything “basic” in math? Of course there is and hopefully you will find this introduction to inequalities easy.  A few things to remember.  First inequalities have many (infinite) solutions.  Example lets consider x > 3  or “what numbers x are greater than 3”.  How many numbers can make this statement true?  Clearly all the numbers greater than 3; 4,5,6, etc.  Because solutions to inequalities involve sets of numbers we use graphs to express there solutions.  The notes below introduce you to the language of graphs of inequalities- pay attention this stuff is very important in algebra.

 

some key topics that involve basic inequalities:

* real number lines
* linear inequalities
* compound inequalities