document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=766386>Question 766386</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write an equation or formula that represents the general relationship indicated.  Then use the given information to find the unknown value.\r<BR>\n" );
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document.write( "If y is directly proportional to x^2 and y = 2 when x = 3, what is y when x = 18? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #466886 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=466886\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y = kx^2<BR>\n" );
document.write( "k = constant of variation<BR>\n" );
document.write( "To find k:<BR>\n" );
document.write( "Use values given.<BR>\n" );
document.write( "y = kx^2<BR>\n" );
document.write( "2 = k3^2<BR>\n" );
document.write( "2 = k9<BR>\n" );
document.write( "k = 2/9<BR>\n" );
document.write( "y = 2/9x^2<BR>\n" );
document.write( "y = 2/9 * 18^2<BR>\n" );
document.write( "y = 72<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
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