document.write( "Question 970813: does the equation x^2 +y^2=16 define y as a function of x? \n" ); document.write( "
Algebra.Com's Answer #593457 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
Solve the equation for y in terms of x.\r
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\n" ); document.write( "\n" ); document.write( "\"y=0%2B-+sqrt%2816-x%5E2%29\"
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