document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1007766>Question 1007766</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Decide whether the following equation defines y as a function of x. <BR>\n" );
document.write( "y=17sqrt x\r<BR>\n" );
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document.write( "a) Yes, because each value of y leads to a unique value of x<BR>\n" );
document.write( "b) No, because for some values of x there are two values of y<BR>\n" );
document.write( "c) No, because for some values of x there is no value of y<BR>\n" );
document.write( "d) Yes, because each value of x leads to a unique value of y </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #623617 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=623617\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Choice d.  That is essentially the definition of a function.  This particular one is only defined for x >= 0 though. </SPAN>\n" );
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