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Determine whether the relation is a function.
-{(-4, -4) , (-2, 1) , (-1, -7) , (5, -9) }
Concept
An abstract idea or general notion that represents something in the mind, forming the basis of thoughts or theories.
Distinctiveness
The quality or condition of being unique and different from other entities in identifiable ways.
Consistency
The quality of always acting or behaving in the same way, exhibiting uniformity in essential traits.
Consensus
A general agreement or the practice of developing such an agreement among the members of a group or community.
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