SOLUTION: If I chose x from the set of all real numbers, is y = |x²| a function of x? If I chose y from the set of all real numbers, is |y| = x² a function of y?

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Question 489765: If I chose x from the set of all real numbers, is y = |x²| a function of x?

If I chose y from the set of all real numbers, is |y| = x² a function of y?

Answer by chessace(471)   (Show Source): You can put this solution on YOUR website!
1. Yes, there are no issues.
2. No. It is a relation, but given a value for y, there will be 2 values for x; "function" requires just 1.

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