document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=741343>Question 741343</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2x2 + y2 = 1 <BR>\n" );
document.write( " y = 7x4 <BR>\n" );
document.write( " x = 3y2 <BR>\n" );
document.write( "   y = 2x + 1 <BR>\n" );
document.write( "Which of these are functions? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #451974 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=451974\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x2 + y2 = 1::::: no <BR>\n" );
document.write( "y = 7x^4::::::::: yes <BR>\n" );
document.write( "x = 3y^2::::::::: no <BR>\n" );
document.write( "y = 2x + 1::::::: yes <BR>\n" );
document.write( "Which of these are functions?<BR>\n" );
document.write( "=============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================= </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );