SOLUTION: is the following a function: x = y^2

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Question 1102762: is the following a function:
x = y^2
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
No it is not, because for a value of x (4, for example), there can be two y values, -2 and 2. It fails the vertical line test.
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