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Mathematics 8 Online
OpenStudy (anonymous):

what is good difinition of function?

OpenStudy (anonymous):

A function is an operation where an input value has only one output value.

terenzreignz (terenzreignz):

^That about sums it up :) A function is a relation which maps elements from a domain X to a co-domain Y such that each element x of X is mapped to only one element of Y.

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