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Functions
Vocabulary terms for Functions
9
Mathematics
9th Grade
02/20/2012

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Term
Relation
Definition
Any set of ordered pairs.
Term
Input
Definition
The first coordinate in an ordered pair.
Term
Output
Definition
The second coordinate in an ordered pair.
Term
Function
Definition
A relation where each input has exactly one output.
Term
Domain
Definition
The set of all input values of a function.
Term
Range
Definition
The set of all output values of a function.
Term
Independent Variable
Definition

The input values of a function.

 

Term
Dependent Variable
Definition
The output values of a function.
Term
Function Notation
Definition
Used to indicate if a relation is a function.  Involves using a letter to name the function. 

Ex:  F(x)=x+4; said "F of x equals x plus 4"
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