document.write( "Question 666159: Is a cirlcle a function ? \n" ); document.write( "
Algebra.Com's Answer #414315 by Shana-D77(132)\"\" \"About 
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It's not. For at least 1 x value there is more than 1 y value. If you learned the Vertical Line Test, a circle fails it. \n" ); document.write( "
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