SOLUTION: How do I determine whether an equation defines y as a function of x? For example 5x+7y=10

Question 921900: How do I determine whether an equation defines y as a function of x?
For example 5x+7y=10
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
IF for each x there is at most one y, that defines y as a function of x.
<---><---><--->
defines y as a function of x because for each value of x you can calculate one unique value of y.
<---><---> does not define y as a function of x, because for some values of x there are 2 possible values for y.
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