The rule: y > x on specified domain and range belowis a .

Function

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Relation

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Neither

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Solution

The correct option is B Relation
Mapping diagram of the given rule is as below
From the mapping diagram we can see that the above rule would not be a function. It will be a relation.
$R e a s o n 1 : - --------- -$
Domain elements "(1 & 2)" are associated with more then one range elements.
$R e a s o n 2 : - --------- -$
Domain element "4" is not associated with any range elements

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