document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1206448>Question 1206448</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which of the following relationships represents a function?<BR>\n" );
document.write( " A. <BR>\n" );
document.write( "(-5,0), (5,3), (-7,1), (5,5)<BR>\n" );
document.write( " B. <BR>\n" );
document.write( "(-5,4), (5,6), (-5,3), (2,2)<BR>\n" );
document.write( " C. <BR>\n" );
document.write( "(-5,4), (4,6), (-5,3), (1,2)<BR>\n" );
document.write( " D. <BR>\n" );
document.write( "(-5,5), (5,3), (-7,2), (2,3)\r<BR>\n" );
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document.write( "A relationship is NOT a function if there are any cases where a given x value has two different y values.<br><BR>\n" );
document.write( " A. <BR>\n" );
document.write( "(-5,0), (5,3), (-7,1), (5,5)<BR>\n" );
document.write( "x=5 has two different y values, 3 and 5  -->  NOT a function<br><BR>\n" );
document.write( " B. <BR>\n" );
document.write( "(-5,4), (5,6), (-5,3), (2,2)<BR>\n" );
document.write( "x=-5 has two different y values, 4 and 3  -->  NOT a function<br><BR>\n" );
document.write( " C. <BR>\n" );
document.write( "(-5,4), (4,6), (-5,3), (1,2)<BR>\n" );
document.write( "x=-5 has two different y values, 4 and 3  -->  NOT a function<br><BR>\n" );
document.write( " D. <BR>\n" );
document.write( "(-5,5), (5,3), (-7,2), (2,3)<BR>\n" );
document.write( "All the x values are different, so there is no way that there can be two different y values for any x value.  This is a function.<br><BR>\n" );
document.write( "ANSWER: D<br>\r<BR>\n" );
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