document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=382526>Question 382526</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Does the set of points {(1,2),(3,2),(6,10),(-3,5)} describe a function? How do you know?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #271059 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=271059\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Does the set of points {(1,2),(3,2),(6,10),(-3,5)} describe a function? How do you know? <BR>\n" );
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document.write( "Yes: All the x-values are different so there<BR>\n" );
document.write( "is no question. It is a function.<BR>\n" );
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document.write( "If a couple of the x's were the same you would check<BR>\n" );
document.write( "to see if the y-values were different for those<BR>\n" );
document.write( "equal x's.  If they were, you would not have a function.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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