document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=204828>Question 204828</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you hhelp me on this problem: 1) A parabola has a vertex of (5,4) and x intercepts of 1 and 9. What is the equation 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 #154590 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=154590\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> where (h,k) is the vertex<BR>\n" );
document.write( "the general equation is ___ y - k = a(x - h)^2\r<BR>\n" );
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document.write( "y - 4 = a(x - 5)^2\r<BR>\n" );
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document.write( "substituting to find a ___ 0 - 4 = a(1 - 5)^2 ___ -4 = 16a ___ -1/4 = a\r<BR>\n" );
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document.write( "so the equation is ___ y - 4 = (-1/4)(x - 5)^2 </SPAN>\n" );
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