document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=644743>Question 644743</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I determine the equation of the parabola that has vertex at the origin, axis of symmetry is the x-axis, and passes through the point (-9, 2)? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #405515 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=405515\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How do I determine the equation of the parabola that has vertex at the origin, axis of symmetry is the x-axis, and passes through the point (-9, 2)?<BR>\n" );
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document.write( "Standard form of equation:x=A(y-k)^2+h, (h,k)=(x,y) coordinates of the vertex<BR>\n" );
document.write( "For given parabola: (h,k)=(0,0)<BR>\n" );
document.write( "x=Ay^2<BR>\n" );
document.write( "solve for A using coordinates of given point (-9,2)<BR>\n" );
document.write( "-9=A*2^2=4A<BR>\n" );
document.write( "A=-9/4<BR>\n" );
document.write( "equation:x=-9y^2/4 </SPAN>\n" );
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