document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1083968>Question 1083968</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine whether the relation is a function.\r<BR>\n" );
document.write( "\n" );
document.write( "{(-5, -2), (-1, 2), (3, 8), (7, -1)}<BR>\n" );
document.write( " <BR>\n" );
document.write( "   <BR>\n" );
document.write( "Function<BR>\n" );
document.write( " <BR>\n" );
document.write( "   <BR>\n" );
document.write( "Not a function <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #698027 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=698027\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It is a function.  If the same x-value has two different y-values, it is not a function.  With these problems, look at the x-values.  If they are all different, it is a function.  If not, the two that are the same have to have the same y-value, in other words, be the same point. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );