**Function**

A relation for which each element of the domain corresponds to exactly one element of the range. For example, is a function because each number *x* in the domain has only one possible square root. On the other hand, is not a function because there are two possible values for any positive value of *x*.

**See also**

Copyrights © 2013 & All Rights Reserved by nafeducation.org*homeaboutcontactprivacy and policycookie policytermsRSS*