In this new section on Inequalities, our instructor first guides you through the use of Addition and Subtraction Techniques to solve inequalities. After a summary of the fundamental principle, you will learn about three ways of representing inequalities: inequality notation, set builder notation, or as a graph on a number line.
If the same number
is added or subtracted from both sides of an inequality, the
resulting inequality has the same solutions as the original one.
Use set builder
notation to describe the solution set of an inequality.
The solutions to
inequalities can also be shown by shading the solution set on a
number line. Endpoints should be drawn as solid dots if they are
part of the solution set, and open circles otherwise.
Inequalities: Addition and Subtraction Techniques
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.