document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1030334>Question 1030334</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I've been trying to solve and understand these problems for the past 2 hours, and it's killing me. I still don't understand it. Can you please show the work when solving, in hopes that I can see, and understand.\r<BR>\n" );
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document.write( "4y^2-16x+8y-12=0\r<BR>\n" );
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document.write( "I need to rewrite in standard form, as well as find the vertex,focus, and directrix. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #645213 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=645213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4y^2 -16x +8y -12 = 0<BR>\n" );
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document.write( "Rewrite grouping like terms<BR>\n" );
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document.write( "4y^2 +8y -16x -12 = 0<BR>\n" );
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document.write( "Divide both sides of = by 4<BR>\n" );
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document.write( "y^2 +2y -4x -3 = 0<BR>\n" );
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document.write( "This is a parabola that opens to the right<BR>\n" );
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document.write( "y^2 +2y = 4x +3<BR>\n" );
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document.write( "Complete the square<BR>\n" );
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document.write( "y^2 +2y +1 = 4x +4<BR>\n" );
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document.write( "*****************<BR>\n" );
document.write( "standard form is<BR>\n" );
document.write( "(y+1)^2 = 4(x+1)<BR>\n" );
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document.write( "Vertex is (-1, -1)<BR>\n" );
document.write( "Focus is (0, -1)<BR>\n" );
document.write( "Directrix is (x = -2)<BR>\n" );
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document.write( "Formulas - parabola opening right<BR>\n" );
document.write( "(y-h)^2 = 4p(x-k)<BR>\n" );
document.write( "Vertex = (h, k)<BR>\n" );
document.write( "Focus = (h+p, k)<BR>\n" );
document.write( "Directrix = (x = h - p)<BR>\n" );
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document.write( " </SPAN>\n" );
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