document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182348>Question 182348</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321369580/algebrahomeworkh>College Algebra in Context</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How do I find the x-coordinate of the vertex of the the graph?\r<BR>\n" );
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document.write( "y=2x(squared)-40x+10\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136865 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=136865\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The general form of a quadratic is:<BR>\n" );
document.write( "y = ax^2 + bx + c<BR>\n" );
document.write( "where<BR>\n" );
document.write( "a,b, and c are the coefficients<BR>\n" );
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document.write( "The x-axis of symmetry is then<BR>\n" );
document.write( "x = -b/2a<BR>\n" );
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document.write( "So, for your equation:<BR>\n" );
document.write( "y=2x(squared)-40x+10<BR>\n" );
document.write( "x = -(-40)/2(2)<BR>\n" );
document.write( "x = 40/4<BR>\n" );
document.write( "x = 10<BR>\n" );
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document.write( "This site might help you review:<BR>\n" );
document.write( "http://www.mathwarehouse.com/geometry/parabola/standard-to-vertex-form.php<BR>\n" );
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