document.write( "Question 254856: is {(1,3),(6,7),(-4,3),(-1,-6)(0,0)} a function or not a function \n" ); document.write( "
Algebra.Com's Answer #187158 by stanbon(75887)\"\" \"About 
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is {(1,3),(6,7),(-4,3),(-1,-6)(0,0)} a function or not a function
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\n" ); document.write( "Notice that all the x-values are different.
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\n" ); document.write( "It is a function.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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