document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=317502>Question 317502</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the x-coordinate of the vertex, the y-coordinate of the vertex.\r<BR>\n" );
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document.write( "f(x) = -2x^2 + 2x + 3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #227381 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=227381\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the x-coordinate of the vertex, the y-coordinate of the vertex.\r<BR>\n" );
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document.write( "f(x) = -2x^2 + 2x + 3<BR>\n" );
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document.write( "x-coordinate:<BR>\n" );
document.write( "x = -b/(2a) <BR>\n" );
document.write( "x = -2/(2 * (-2))<BR>\n" );
document.write( "x = -2/(-4)<BR>\n" );
document.write( "x = 1/2<BR>\n" );
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document.write( "y-corordinate:<BR>\n" );
document.write( "Plug above into equation:<BR>\n" );
document.write( "f(x) = -2x^2 + 2x + 3<BR>\n" );
document.write( "f(1/2) = -2(1/2)^2 + 2(1/2) + 3<BR>\n" );
document.write( "f(1/2) = -2(1/4) + 1 + 3<BR>\n" );
document.write( "f(1/2) = -1/2 + 1 + 3<BR>\n" );
document.write( "f(1/2) = -1/2 + 4<BR>\n" );
document.write( "f(1/2) = -1/2 + 8/2<BR>\n" );
document.write( "f(1/2) = 7/2<BR>\n" );
document.write( "y = 7/2\r<BR>\n" );
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document.write( " </SPAN>\n" );
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