document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=460394>Question 460394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Decide whether or not the equation defines y as a function of x.<BR>\n" );
document.write( "x=y^2-5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #315783 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=315783\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If x = 4, then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+=+y%5E2+-+5 ALIGN=MIDDLE  ALT=\"4+=+y%5E2+-+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > ==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5E2+=+9 ALIGN=MIDDLE  ALT=\"y%5E2+=+9\"   DISABLED_style= \"max-width:90%; height:auto;\" > ==> y = 3, -3.  The points (4,3) and (4, -3) are on the graph of the equation.  Therefore y is not a function of x. </SPAN>\n" );
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