document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=110399>Question 110399</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the axis of symmetry\r<BR>\n" );
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document.write( "y=x^2+7x+10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #80453 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=80453\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Axis of symmetry= -b/2a<BR>\n" );
document.write( "y=x^2+7x+10<BR>\n" );
document.write( "a=1, b=7, c=10<BR>\n" );
document.write( "-7/2=-3.5<BR>\n" );
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document.write( "Another way is to find the average of the x intercepts<BR>\n" );
document.write( "(x+5)(x+2)=0<BR>\n" );
document.write( "x=-2, x=-5<BR>\n" );
document.write( "(-2-5)/2=-7/2=-3.5<BR>\n" );
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document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
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