document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=522403>Question 522403</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help!<BR>\n" );
document.write( "I have to write this equation in vertex form.<BR>\n" );
document.write( "The vertex of the parabola is the origin. Point W (4,-5) lies on the graph of the parabola. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #346831 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=346831\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have to write this equation in vertex form.<BR>\n" );
document.write( "The vertex of the parabola is the origin. Point W (4,-5) lies on the graph of the parabola.<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Form: y = a(x-h)^2+k<BR>\n" );
document.write( "h=0 and k=0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "y = ax^2<BR>\n" );
document.write( "solve for \"a\":<BR>\n" );
document.write( "-5 = a*4^2<BR>\n" );
document.write( "a = -5/16<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "y = (-5/16)x^2<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" );