document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1195888>Question 1195888</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Each set  of ordered pairs represents a function. Write a rule that represents the function.\r<BR>\n" );
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document.write( "(2,5), (4,9), (5,11), (7,15), (10,21) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #828489 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=828489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "To the student who submitted the question....<br><BR>\n" );
document.write( "Take a moment to think about what you are posting.  Your assignment sheet might say \"each (of the following) ordered pairs represents a function\"; but when in your post you only show one of the examples on your sheet, the statement is incorrect, because it is NOT true that \"each\" (every) set of ordered pairs represents a function.<br><BR>\n" );
document.write( "Now to the example you show....<br><BR>\n" );
document.write( "Perhaps your assignment sheet specifies that all the examples either  are not functions or they represent LINEAR functions.  But your post says nothing about linear functions.  So a valid answer to the problem as you post it would be the function defined as follows:<br><BR>\n" );
document.write( "{(x,y)=(2,5), (4,9), (5,11), (7,15), (10,21)}<br><BR>\n" );
document.write( "or as<br><BR>\n" );
document.write( "{f(2)=5; f(4)=9; f(5)=11; f(7)=15; f(10)=21}<br><BR>\n" );
document.write( "By cutting and pasting to make your post, you lost important context, making the intent of the question uncertain.  Think about that when you make a post, as a way of being respectful to those of us who are here to try to answer your questions.<br><BR>\n" );
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