document.write( "Question 39879: which one defines a function?\r
\n" ); document.write( "\n" ); document.write( "1. y=x-1 2. y^2=4-x^2 3.y=square root of x \n" ); document.write( "

Algebra.Com's Answer #25323 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
1. y=x-1 2. y^2=4-x^2 3.y=square root of x\r
\n" ); document.write( "\n" ); document.write( "#1 is a function because for each value of \"x\" there
\n" ); document.write( "is exactly one value of \"y\".
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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