The distance a number is from zero on a number line and is represented by two vertical bars on either side of the number |a|. Example: The absolute value of |-2| = 2, or |2| = 2.
An integer and its opposite; A number that when added to a given number, results in a sum of zero. Example: The additive inverse of 4 is -4 because 4 + (-4) = 0.
An expression consisting of a variable, a number, and at least one operation symbol
A conclusion reached that is based on an educated guess or inductive reasoning.
The number that corresponds to a point on a number line.