Absolute Value:
The absolute value of x defined as:
 if and  if .

Properties of exponents:
Multiplication of exponents rule is defined as:

Division of exponents rule is defined as:

The power rule of exponents is defined as:
 

Interval notation:
Interval notation is another form of representing inequalities without having to use too much mathematical notation.

Algebra 2 prerequisites are covered in this tutorial. The use of real numbers and what operations are performed in example problems are introduced in this tutorial.

A representation of inequalities using interval notation and the use of absolute values are presented in this tutorial. Important mathematics principles such as scientific notation and formulas are shown here to emphasize the importance of them in mathematics application problems. Scientific notation is commonly used in course such as chemistry and biochemistry to represent values.

Specific Tutorial Features:
• Step by step mathematical examples showing all details: Interval Notation, Absolute Values, Real Numbers and Their Operations, Algebraic Expressions, and Exponents

Series Features:
• Concept map showing inter-connections of new concepts in this tutorial and those previously introduced.
• Definition slides introduce terms as they are needed.
• Visual representation of concepts
• Animated examples—worked out step by step
• A concise summary is given at the conclusion of the tutorial.