document.write( "Question 160123: can someone please help me with this problem:\r
\n" ); document.write( "\n" ); document.write( "Determine whether the relation is a function.\r
\n" ); document.write( "\n" ); document.write( "{(-6,-3),(-6,-9),(2,-6),(4,4),(8,-3)}\r
\n" ); document.write( "\n" ); document.write( "a. function
\n" ); document.write( "b. not a function
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Algebra.Com's Answer #118200 by midwood_trail(310)\"\" \"About 
You can put this solution on YOUR website!
If you find a duplicate x-value, then the different y-values mean that you do not have a function.\r
\n" ); document.write( "\n" ); document.write( "Your question:
\n" ); document.write( "Determine whether the relation is a function.\r
\n" ); document.write( "\n" ); document.write( "{(-6,-3),(-6,-9),(2,-6),(4,4),(8,-3)}\r
\n" ); document.write( "\n" ); document.write( "a. function
\n" ); document.write( "b. not a function\r
\n" ); document.write( "\n" ); document.write( "All x values: -6, -6, 2, 4, 8\r
\n" ); document.write( "\n" ); document.write( "All y values: -3, -9, -6, 4, -3\r
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\n" ); document.write( "\n" ); document.write( "If you notice that there are two points with the same x value of -6.\r
\n" ); document.write( "\n" ); document.write( "Point (-6, -3) and point (-6, -9) both have the same -6 value for x.\r
\n" ); document.write( "\n" ); document.write( "See it?\r
\n" ); document.write( "\n" ); document.write( "When two or more points have the same x value, then there is no function.\r
\n" ); document.write( "\n" ); document.write( "The answer is b = not a function.\r
\n" ); document.write( "\n" ); document.write( "Did you follow?\r
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