document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329507>Question 329507</A>: <I><SPAN STYLE=\"word-break: break-all;\"> give the coordinates of the vertex\r<BR>\n" );
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document.write( "y=x^2+4x+1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #236190 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=236190\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> give the coordinates of the vertex\r<BR>\n" );
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document.write( "y=x^2+4x+1<BR>\n" );
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document.write( "coordinate of the x-axis:<BR>\n" );
document.write( "x = -b/(2a) <BR>\n" );
document.write( "x = -4/(2(1)) <BR>\n" );
document.write( "x = -4/2 <BR>\n" );
document.write( "x = -2<BR>\n" );
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document.write( "to find coordinate of the y-axis, plug it back in to the original equation:<BR>\n" );
document.write( "y=x^2+4x+1<BR>\n" );
document.write( "y=(-2)^2+4(-2)+1<BR>\n" );
document.write( "y=4+4(-2)+1<BR>\n" );
document.write( "y=4+(-8)+1<BR>\n" );
document.write( "y=4-8+1<BR>\n" );
document.write( "y=-4+1<BR>\n" );
document.write( "y=-3<BR>\n" );
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document.write( "Vertex is at (-2,-3) </SPAN>\n" );
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