document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1028741>Question 1028741</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could someone please help me with writing a conic equation in standard form?  The question is:  A parabola with vertex at (5,0) and directrix at x=7.<BR>\n" );
document.write( "I have (y-k)^2=-4p(x-h)<BR>\n" );
document.write( "(y-0)^2=-4p(x-5)<BR>\n" );
document.write( "p=2\r<BR>\n" );
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document.write( "y^2=-8p(x-5)--not sure if this is correct?  Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643842 by </B><A HREF=/tutors/aboutme.mpl?userid=Natolino1983><B>Natolino1983(23)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Natolino1983><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=643842\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You almost got the answer. In this case, p = 2 (distance between vertex and directrix).\r<BR>\n" );
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document.write( "So the equation is y^2 = -8×(x - 5), because -4×p = -4×2 =-8. </SPAN>\n" );
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