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function

A relation in which there is one and only one second member (range) for each first member (domain)

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function table

A table of values in which a unique value is assigned to the second variable (range) for each value of the first variable (domain.)

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nonlinear function

A function that does not have a constant rate of change. The graph of a nonlinear function is not a straight line.

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quadratic function

A function in the second degree; any function that an be described by an equation of the form y=ax2+bx+c, where a ≠ 0

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relation

Any set of ordered pairs

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input

The independent (x) value of a function

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linear equation

An equation in two variables whole graph is a line. (The independent variable is limited to the first power.)

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linear function

Function in the first degree whose graph is a line

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ordered pair (x,y)

A pair of numbers used to locate a point in the coordinate plane. The ordered pair is written in this form (x-coordinate, y-coordinate.)

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output

The value of the dependent variable of a function

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x

A variable commonly used for the domain, independent variable, or the input of a function

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y

A variable commonly used for the range, dependent variable, or the output of a function

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coordinate plane

Another name for the coordinate system which is formed by the intersection of two number lines that meet at right angles at their zero points

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domain

The set of input values in a function

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range

The set of output values in a function

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dependent variable

The variable for the output of a function

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independent variable

The variable for the input of a function.

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