document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1084328>Question 1084328</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Is (-2,-1),(1,-6),(5,-1),(8,-9),(11,8) a function? How can I determine by just looking at this? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #698429 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=698429\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Yes<BR>\n" );
document.write( "All the x s are different.<BR>\n" );
document.write( "Functions can't happen if there are two y values to the same x.  Therefore, if there is no repetition of the x, it has to be a function. </SPAN>\n" );
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