National Council of Teachers of Mathematics
The Math Forum: Inequalities and Absolute Value Case Method
"Dr. Math" responds to a student question on how to use the case method in solving absolute value ienqualities.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving Inequalities W/ Absolute Values
In responding to a student question on how to solve absolute value inequalities, "Dr. Math" explains why it is necessary to solve two inequalities.
University of Regina (Canada)
University of Regina: Math Central: Solving Absolute Value Inequality
In response to a student submitted problem that involves an absolute value inequality, a solution to the problem with an explanation of steps is given for you to follow. Site by University of Regina.