Absolute Value Basics

This section has the following videos:

  • Lesson Video
  • Example Set A Practice Problems (Video Solutions)
  • Example Set B Practice Problems (Video Solutions)
  • Example Set C Practice Problems (Video Solutions)
  • DOWNLOAD the Practice Problem Worksheet Here (the videos below explain the solutions to the problems)

The concept of absolute value is very important for algebra students to understand. The key thing to know is that absolute value measures distance a number is from zero. If you remember that distance is always a positive number you will be just fine.

Key concepts to remember:

* the absolute value is the “distance” a number is from zero on the real number line
* distance is measured in positive units- therefore the absolute value of a number is always positive
* absolute values are common in algebraic expressions- so you need to really understand them

 

 

Evaluating an absolute value expression is when you calculate the value of the problem. Remember when you find the absolute value of a number the answer is always positive. However when absolute values are apart of a larger expression the overall value can be any real number- positive or negative.

Key concepts to remember:

* the absolute value is the “distance” a number is from zero on the real number line
* distance is measured in positive units- therefore the absolute value of a number is always positive
* absolute values are common in algebraic expressions- so you need to really understand them

 

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