SOLUTION: determine whether this relation is a function please give step by step thanks x=y^4

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Question 80658: determine whether this relation is a function please give step by step thanks
x=y^4
Answer by stanbon(75887) About Me  (Show Source):
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determine whether this relation is a function please give step by step thanks
x=y^4
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If y=-2, x=16,
If y=+2, x=16
Thus two points of the graph have the same domain value but different range values. Thus x=y^4 is not a function.
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Cheers,
Stan H.