document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=765581>Question 765581</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to determine if relation is function:\r<BR>\n" );
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document.write( "Domain: each person in town <BR>\n" );
document.write( "Correspondence: each persons aunt <BR>\n" );
document.write( "Range: a set of females\r<BR>\n" );
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document.write( "Is this relationship a function?\r<BR>\n" );
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document.write( "How would you go about figuring it out? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #466265 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=466265\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is NOT a function because a person may have more than one aunt. So let's say you have a person named Frank and he has a dad who has a sister named Julie and Barbara. Let's say Frank's mom has 1 sister named Debbie. Frank has 3 aunts, but the input (Frank) needs to map to EXACTLY ONE output (Franks aunt) for it to be a function. One value in the domain is \"Frank\" and three values in the range would be \"Julie\", \"Barbara\", \"Debbie\". If this was a function, then \"Frank\" would only map to one, and only one name in the range, not 3.\r<BR>\n" );
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document.write( "So again, this is a NOT a function. </SPAN>\n" );
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