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X -values can not repeat, yet Y-values can.

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An equation/expression that includes variables

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A function is an expression with variable that can be graphed, and shows a relationship between two things.

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contains variables

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an expression containing variables, and can be graphed

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An equation that uses multiple variables.

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An expression with one or more variables

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Functions can be graphed and contain one or more variables

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Expression with variables

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Includes parabolas

(x-a)(x+a)

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A function is used to show a relationship between two things and how they correspond (uses variables)

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An algebraic equation that contains multiple variable (ex. x,y)

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An expression involving one or more variable

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Usually written as function of ____:
f(x) = ____....

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An equation used for graphing

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A function of a variable like x

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Equation

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An equation involving variable such as x and y.

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Equation used for graphing

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A function is when you have an input and an output and there is an equation that you use to get from one to another. You can use any number in the input and then get an output. The difference between the input and output should be about the same every time.

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An equation with variables

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An expression that uses variables

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An expression involving variables