document.write( "Question 1066040: does the equation x^2 + y^2= 144 define y as a function of x? \n" ); document.write( "
Algebra.Com's Answer #681198 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
No. This is a graph of a circle, where there are two values of y for a single point x.
\n" ); document.write( "You may write this as y=+/- sqrt (144-x^2).
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