document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=62210>Question 62210</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 20. Identify the axis of symmetry, create a suitable table of values, then sketch the graph (including the axis of symmetry).\r<BR>\n" );
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document.write( "y=x^2-4x\r<BR>\n" );
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document.write( "Okay, I took a stab at this but I don't think I did it right. This is what I did.\r<BR>\n" );
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document.write( "x=-b/2a\r<BR>\n" );
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document.write( "y=ax^2+bx+c\r<BR>\n" );
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document.write( "- -4/2.1=\r<BR>\n" );
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document.write( "x=4/2\r<BR>\n" );
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document.write( "x=1\r<BR>\n" );
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document.write( "I have no idea how to create a suitable table of values in which my teacher told us to use excel to do the graph. I don't know how to plot a graph or even use excel.\r<BR>\n" );
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document.write( "I am screaming help to the fourth power, please. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #42959 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=42959\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 20. Identify the axis of symmetry, create a suitable table of values, then sketch the graph (including the axis of symmetry). <BR>\n" );
document.write( "y=x^2-4x <BR>\n" );
document.write( "COMPLETE THE SQUARE USING ALL X TERMS USING (A-B)^2=A^2-2AB+B^2..BY FINDING B AND THEN BY ADDING AND SUBTRACTING B^2<BR>\n" );
document.write( "HERE A=X...-4X=-2XB...B=2.....SO ADD AND SUBTRACT 2^2 TO COMPLETE THE SQUARE <BR>\n" );
document.write( "Y=[(X)^2-2(X)*2+2^2]-2^2=(X-2)^2-4<BR>\n" );
document.write( "HENCE AXIS OF SYMMETRY IS X-2=0...OR...X=2<BR>\n" );
document.write( "GIVE DIFFERENT VALUES FOR X AND FIND Y ..FOR EX..IF X =0...Y=0^2-4*0=0<BR>\n" );
document.write( "X......0........2.......4........6..........-2.........-4....ETC...<BR>\n" );
document.write( "Y=.....0.......-4.......0........12...........12.........32.....ETC<BR>\n" );
document.write( "GRAPH WILL LOOK LIKE THIS \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+500%2C+500%2C+-10%2C+10%2C+-50%2C+50%2Cx%5E2-4%2Ax%29+ ALIGN=MIDDLE  ALT=\"+graph%28+500%2C+500%2C+-10%2C+10%2C+-50%2C+50%2Cx%5E2-4%2Ax%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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