document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=65292>Question 65292</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Is {(1,1),(2,1),(2,2) and (1,2)} a function? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #45844 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=45844\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Is {(1,1),(2,1),(2,2) and (1,2)} a function?<BR>\n" );
document.write( "No, x=1 has two different y's, 1 and 2.  That's enough to say it's not a function, but x=2 has two different y's also, 1 and 2.<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
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