Algebra vocabulary

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Variable

Back

A symbol (usually a letter) that represents an unknown value.

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Coefficient

Back

A number in front of a variable in an algebraic expression.

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Constant

Back

A value that does not change (a number).

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Expression

Back

A combination of numbers, variables, and operations (no equals sign).

Front

Equation

Back

A mathematical sentence that states two expressions are equal.

Front

Inequality

Back

A mathematical sentence comparing expressions using <, >, ≤, ≥.

Front

Linear Equation

Back

An equation whose graph is a straight line; y = mx + b.

A LINE!!

Front

Quadratic Equation

Back

An equation with a squared term; ax^2 + bx + c = 0.

A Parabola or U shape.

Front

Function

Back

A relation where each input has exactly one output. OR

X-values do NOT repeat!

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Domain

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The set of all possible input values (x-values).