SOLUTION: does the equation x^2 +y^2=16 define y as a function of x?

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Question 970813: does the equation x^2 +y^2=16 define y as a function of x?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the equation for y in terms of x.

y=0%2B-+sqrt%2816-x%5E2%29