document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1073151>Question 1073151</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Using y2 -4y -4x = 0, Find the vertex, the focus, and the directrix then graph the equation </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #688026 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=688026\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5E2-4y-4x=0 ALIGN=MIDDLE  ALT=\"y%5E2-4y-4x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x=y%5E2-4y ALIGN=MIDDLE  ALT=\"4x=y%5E2-4y\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x=y%5E2-4y%2B4-4 ALIGN=MIDDLE  ALT=\"4x=y%5E2-4y%2B4-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x=%28y-2%29%5E2-4 ALIGN=MIDDLE  ALT=\"4x=%28y-2%29%5E2-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%2B4=%28y-2%29%5E2 ALIGN=MIDDLE  ALT=\"4x%2B4=%28y-2%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%284%28x%2B1%29=%28y-2%29%5E2%29 ALIGN=MIDDLE  ALT=\"highlight%284%28x%2B1%29=%28y-2%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Vertex is the left-most point, and the parabola opens toward the right.  Symmetry axis is parallel to the x-axis.\r<BR>\n" );
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document.write( "Equation indicates vertex  (-1,2).\r<BR>\n" );
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document.write( "The factor 4 on the left indicates that some distance p so that 4p=4, is how far both the directrix and focus are from the vertex.  Here, p=1.  \r<BR>\n" );
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document.write( "DIRECTRIX:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-2 ALIGN=MIDDLE  ALT=\"x=-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "FOCUS:   (0,2)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-2%2C8%2C-3%2C7%2C2-2sqrt%28x%2B1%29%2C2%2B2sqrt%28x%2B1%29%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-2%2C8%2C-3%2C7%2C2-2sqrt%28x%2B1%29%2C2%2B2sqrt%28x%2B1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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