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GEC-MMW
2.3
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Cards (8)
Relation
A set of ordered pairs
A rule that produces one or more output numbers for every valid input number
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Function
A set of inputs, a set of outputs
A rule for mapping each input to exactly one output is a
relation
in which each possible input value leads to exactly one output value
The output is a
function
of the input
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Domain
The set of all
first
coordinates
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Range
The set of all
second
coordinates
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Representations of
Relation
Table of values
Mapping diagram
Graph
Ordered Pairs
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Inverse
Function
A function that can reverse into another function
If a function "F" takes X to Y, then the inverse of "F" will take Y to X
Denoted by
f-1
or
F-1
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All function is a
relation
but not all relation is a
function
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Types of Relation
One to one relation
One to many relation
Many to one relation
Many to many relation