document.write( "Question 345442: does x+8=y^2 define y as a function of x? \n" ); document.write( "
Algebra.Com's Answer #247107 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
No, there are two values of y for each value of x, violating the requirements for a function.
\n" ); document.write( "As an example, \"x=8\",
\n" ); document.write( "\"8%2B8=y%5E2\"
\n" ); document.write( "\"y%5E2=16\"
\n" ); document.write( "\"y=4\" and \"y=-4\".
\n" ); document.write( "
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