Unit 1 Vocabulary 8th Grade Math

A combination of variables, numbers, and at least one operation.

• Equation
• Algebraic Expression

• Inequality

• Graph

Letters used to represent unknown quantities

• Alphabets
• Constants

• Variables

• Symbols

The number in front of a variable

• Coefficient
• Exponent
• Constant

• Superscript

A term without a variable

• Coefficient
• Constant
• Variable
• Exponent

A single number, a single variable, or a product of a number and variable in an expression.

They are separated by plus signs (+) and minus signs (-).

• Term

• Coefficient

• Constant
• Variable

Terms that contain the same variables raised to the same power. Terms without a variable are also like terms.

• Unlike terms
• Like terms
• Different terms
• Variable terms

A property showing that two or more terms inside a set of parentheses can be multiplied by a number outside the parentheses

• Distributive Property
• Associative Property
• Commutative Property
• Identity Property

A mathematical sentence that shows that two expressions are equivalent. It contains an equal sign.

• Equation
• Inequality
• Expression
• Function

Operations that undo each other. (Opposite operations)

• Addition and Multiplication

• Subtraction and Division

• Square Roots and Cube Roots

• Inverse Operations

A value for a variable that makes an equation true

• Solution
• Variable
• Equation
• Function