SOLUTION: is x^2+y^2=64 a function?

SOLUTION: is x^2+y^2=64 a function?

Algebra.Com

Question 675405: is x^2+y^2=64 a function?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
No it is not because solving for y gives you or which both fail the vertical line test (if you plot them both at the same time).
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