document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=142709>Question 142709</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the vertex of the graph of the quadratic function.<BR>\n" );
document.write( "f (x)=-x^2-10x-7\r<BR>\n" );
document.write( "\n" );
document.write( "I'm not sure what to do here.  Could you please tell me where to start and what I'm doing?  Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #103847 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><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=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=103847\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the vertex of the graph of the quadratic function.<BR>\n" );
document.write( "f (x)=-x^2-10x-7\r<BR>\n" );
document.write( "\n" );
document.write( "the formula of the vertex is V=(-b/2a,f(-b/2a)) so<BR>\n" );
document.write( "V=(-5,f(-5))=(-5,18) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );