document.write( "Question 345493: Does the equation y^2=16x define y as a function of x? \n" ); document.write( "

Algebra.Com's Answer #247079 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"y%5E2=16x+\"$
\n" ); document.write( " $\"y=0+%2B-+sqrt%2816x%29\"$
\n" ); document.write( " $\"y=0+%2B-+4sqrt%28x%29\"$
\n" ); document.write( "However, $\"y\"$ is not a proper function.
\n" ); document.write( "By definition, a function provide a unique $\"y\"$ value for each $\"x\"$ value.
\n" ); document.write( "This relation provides two $\"y\"$ value for each $\"x\"$ value.
\n" ); document.write( " \n" ); document.write( "

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