document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=642926>Question 642926</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Is the relation {(1,3),(-4,0),(3,1),(0,4),(2,3)} a function? Why or why not? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #404278 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=404278\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since each x value maps to one and ONLY ONE y value, this means that this given relation is indeed a function.\r<BR>\n" );
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document.write( "If we had x = 2 mapping to both y = 3 and y = 4 at the same time, then this wouldn't be a function (since this x value is mapping to more than one y value). But that's not the case here.\r<BR>\n" );
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document.write( "So again, this relation is a function.\r<BR>\n" );
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document.write( "Summary\r<BR>\n" );
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document.write( "Is the relation {(1,3),(-4,0),(3,1),(0,4),(2,3)} a function? <font color=\"red\">Yes</font>\r<BR>\n" );
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document.write( "Why or why not? <font color=\"red\">See explanation above</font> </SPAN>\n" );
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