document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=118946>Question 118946</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A quadratic equation is given by y=2x^2 - 6bx+3.What is the value of 'b' if the equation of the axis of symmetry is x=9 ? I think the answer is 6 but I really don't fully understand, can someone please explain this to me ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87067 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=87067\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A quadratic equation is given by y=2x^2 - 6bx+3.What is the value of 'b' if the equation of the axis of symmetry is x=9 ? I think the answer is 6 but I really don't fully understand, can someone please explain this to me ?<BR>\n" );
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document.write( "In the general form of a quadratic. y = ax^2+bx+c,<BR>\n" );
document.write( "the axis of symmetry is x = -b/2a Where \"b\" is the coefficient of the 2nd term.<BR>\n" );
document.write( "In Your Problem, \"b\" = -6b<BR>\n" );
document.write( "So -(-6b)/(2*2) = 9<BR>\n" );
document.write( "3b/2 = 9<BR>\n" );
document.write( "b = 6<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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