document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1183440>Question 1183440</A>: <I><SPAN STYLE=\"word-break: break-all;\"> f(x) = c (x - 3)(x + 3)\r<BR>\n" );
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document.write( "In the quadratic equation above, c is a nonzero constant. The graph of the equation in the xy- plane is a parabola with a vertex (h,k), where k = -18. What is c? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #813780 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=813780\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> k is the constant and is -18<BR>\n" );
document.write( "the product of the parentheses is -9<BR>\n" );
document.write( "c must be 18/-9 or -2<BR>\n" );
document.write( "the equation is f(x)=2x^2-18<BR>\n" );
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