document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199016>Question 1199016</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine whether each relation defines a function\r<BR>\n" );
document.write( "\n" );
document.write( "x-4y=8\r<BR>\n" );
document.write( "\n" );
document.write( "y=2x+3\r<BR>\n" );
document.write( "\n" );
document.write( "1/2x=3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #832730 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52793)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=832730\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Determine whether each relation defines a function\r<BR>\n" );
document.write( "\n" );
document.write( "(a) x-4y=8\r<BR>\n" );
document.write( "\n" );
document.write( "(b) y=2x+3\r<BR>\n" );
document.write( "\n" );
document.write( "(c) 1/2x=3<BR>\n" );
document.write( "~~~~~~~~~~~~~~~~\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "(a)  Yes, because you can express y as a function of x.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "(b)  Yes, because you can express y as a function of x.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "(c)  No, since it is not a  \" relation \"  in a mathematical sense,\r\n" );
document.write( "     and it does not define any y-values.\r\n" );
document.write( "</PRE>\r<BR>\n" );
document.write( "\n" );
document.write( "Solved, answered and explained.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );