document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=77277>Question 77277</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the equation of the axis of symmetry of the graph y=x^2-4x+1? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #55352 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=55352\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y = x^2 - 4x + 1<BR>\n" );
document.write( "This is a parabola that is vertical.<BR>\n" );
document.write( "The line of symmetrical is vertical, so the equation must x = something ....<BR>\n" );
document.write( "Vertex(-b/2a,f(x))<BR>\n" );
document.write( "V(-(-4)/(2*1),f(x))<BR>\n" );
document.write( "V(4/2,f(x))<BR>\n" );
document.write( "V(2,f(2))<BR>\n" );
document.write( "x = 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2+-+4x+%2B+1%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2+-+4x+%2B+1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );