Variables, Expressions, & Functions Vocab.

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Quantity

Back

Anything that can be measured or counted.

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Constant

Back

A number with a fixed value.

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Coefficient

Back

The constant immediately in front of a variable; A constant multiplied by a variable.

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Variable

Back

A symbol, usually a letter, that stands in for an unknown value.

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Operator

Back

A symbol representing addition, subtraction, multiplication, or division.

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Expression

Back

Any mathematical statement containing at least two terms (numbers, variables, or a combination of both) and at least one operator.

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Numerical Expression

Back

Involves numbers and operations, but no variables.

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Algebraic Expression

Back

Includes one or more variables along with operations.

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Equation

Back

Any two equivalent expressions; meaning, two expressions connected by an equal sign.

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Function

Back

A relationship with one or more variables, where each input has a single output.