document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=759640>Question 759640</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Compared to the focus and directrix of y = ax^2, explain how the focus and directrix of <BR>\n" );
document.write( " (y-k) = a(x-h)^2 are affected by the values of h and k. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #462144 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=462144\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Compared to the focus and directrix of y = ax^2, explain how the focus and directrix of <BR>\n" );
document.write( "(y-k) = a(x-h)^2 are affected by the values of h and k.<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "x^2 = ay<BR>\n" );
document.write( "4p = a<BR>\n" );
document.write( "p = a/4<BR>\n" );
document.write( "Focus:: (0,a/4)<BR>\n" );
document.write( "Directris: y = -a/4<BR>\n" );
document.write( "===============================<BR>\n" );
document.write( "y-k = a(x-h)^2<BR>\n" );
document.write( "Focus:: (0+h,(a/4)+k)<BR>\n" );
document.write( "Directrix: y = (-a/4)+k\r<BR>\n" );
document.write( "\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" );