Algebra IB Unit 5 Vocabulary Functions & Quadratics Lessons 1-3

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Function

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A relation between a set of inputs and a set of permissible outputs, typically represented by a graph, equation, or table.

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Dependent Variable

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A variable whose value depends on that of another. In a function, it is the output value.

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Independent Variable

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A variable whose variation does not depend on another variable. In a function, it is the input value.

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Domain

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The set of all possible input values (independent variables) for which a function is defined.

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Range

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The set of all possible output values (dependent variables) produced by a function.

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Projection

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A mapping of a set into a subset or onto another set, often used in the context of graphing or geometry.

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Table of Values

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A table showing selected values of a function, often used to illustrate the relationship between the independent and dependent variables.

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Graph

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A visual representation of data or a function, typically using a coordinate system.

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Ordered Pairs

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The (x,y) coordinate pairs of points on a graph, where x is the independent variable and y is the dependent variable

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Function notation

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