document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64480>Question 64480</A>: <I><SPAN STYLE=\"word-break: break-all;\"> looking for more help please, Thank you...<BR>\n" );
document.write( "Given f(x) = x^2 – 8x - 20 equation (parabola), find the following:\r<BR>\n" );
document.write( "\n" );
document.write( "21.)	The vertex\r<BR>\n" );
document.write( "\n" );
document.write( "22.)	The y-intercept(s)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #47435 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=47435\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The easiest way to find the vertex of f(x)= ax^2 + bx + c is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-b%2F%282a%29+ ALIGN=MIDDLE  ALT=\"x=-b%2F%282a%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In this case, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+-%28-8%29%2F%282%2A1%29+=+4 ALIGN=MIDDLE  ALT=\"x+=+-%28-8%29%2F%282%2A1%29+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "To find the y coordinate of the vertex, \"Plug it in, plug it in!\":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+x%5E2-8x-20 ALIGN=MIDDLE  ALT=\"y+=+x%5E2-8x-20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=4%5E2+-8%2A4-20=+-36 ALIGN=MIDDLE  ALT=\"y=4%5E2+-8%2A4-20=+-36\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Vertex = (4, -36)\r<BR>\n" );
document.write( "\n" );
document.write( "Y intercept is always where x=0, so y = -20.  \r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph+%28300%2C600%2C+-4%2C+12%2C+-40%2C+40%2C+x%5E2+-8x-20%29+ ALIGN=MIDDLE  ALT=\"graph+%28300%2C600%2C+-4%2C+12%2C+-40%2C+40%2C+x%5E2+-8x-20%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "R^2 at SCC </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );