Ratios & Proportions
A way to compare two quantities when there are a units of one quantity for every b units of the other quantity.
Ratio
Numbers that are greater than 0.
Positive Numbers
A letter that represents an unknown number.
Variable
A ratio that tells the number of units of one quantity for 1 unit of another quantity. Often expressed using the word per.
Unit Rate
Numbers that are less than 0.
Negative Numbers
A mathematical statement that uses an equal sign (=) to show that the two sides have the same value.
Equation
A fraction in which the numerator is a fraction, the denominator is a fraction, or both the numerator and denominator are fractions.
Complex fraction
Two opposite numbers form this type of pair
Zero Pair
A quantity that is not changed in value, a fixed number
Constant
The unit rate in a proportional relationship.
Constant of Proportionality
A number's distance from 0 on the number line; it's never negative
Absolute Value
A number that is multiplied by a variable.
Coefficient
The relationship between two quantities where one quantity is a constant multiple of the other quantity.
Proportional Relationship
The set of whole numbers and their opposites.
Integers
Two or more terms that have the same variable factors
Like Terms