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Q&A #6018


Determination of a relation to a function

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From: ---
To: Teacher2Teacher Service
Date: Mar 25, 2001 at 15:26:24
Subject: Determination of a relation to a function

 Hi,  It's been 7 + years since I've used this particular math. (This isn't
my major)

Question:  Determine whether each relation is a function

Problem:  x + y^2 = 11


I know it's not a function but WHY? I know it has to do with the Y being
squared but I can't find anything in my textbook that explains
exactly why?  How do I teach this?

Any help you can give me will be appreciated.  Thanks

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