document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=71677>Question 71677</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2) 	For the function y =  x2 - 4x - 5, perform the following tasks:<BR>\n" );
document.write( "a) 	Put the function in the form y = a(x - h)2 + k.<BR>\n" );
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document.write( "Show work in this space\r<BR>\n" );
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document.write( "b) 	What is the equation for the line of symmetry for the graph of this function?<BR>\n" );
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document.write( "c) 	Graph the function using the equation in part a.  Explain why it is not necessary to plot points to graph when using y = a (x – h)2 + k.<BR>\n" );
document.write( "Show graph here. \r<BR>\n" );
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document.write( "Explanation of graphing. \r<BR>\n" );
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document.write( "d) 	In your own words, describe how this graph compares to the graph of y = x2?\r<BR>\n" );
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document.write( "Answer:	<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51281 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=51281\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2) For the function y = x^2 - 4x - 5, perform the following tasks:<BR>\n" );
document.write( "a) Put the function in the form y = a(x - h)2 + k.<BR>\n" );
document.write( "Answer: <BR>\n" );
document.write( "Show work in this space <BR>\n" );
document.write( "x^2-4x +? = y+5+?<BR>\n" );
document.write( "x^2-4x+4 = y+5+4<BR>\n" );
document.write( "(x-2)^2 = y+9<BR>\n" );
document.write( "y=(x-2)^2-9<BR>\n" );
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document.write( "b) What is the equation for the line of symmetry for the graph of this function?<BR>\n" );
document.write( "Answer: <BR>\n" );
document.write( "Axis of symmetry x=2\r<BR>\n" );
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document.write( "c) Graph the function using the equation in part a. Explain why it is not necessary to plot points to graph when using y = a (x – h)2 + k.<BR>\n" );
document.write( "Show graph here.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C300%2C-10%2C10%2C-20%2C10%2Cx%5E2-4x-9%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C300%2C-10%2C10%2C-20%2C10%2Cx%5E2-4x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Explanation of graphing.<BR>\n" );
document.write( "Vertex is at (h,k), If a>0 the parabola opens up; if a<0 it opens down. \r<BR>\n" );
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document.write( "d) In your own words, describe how this graph compares to the graph of y = x2? <BR>\n" );
document.write( "Answer: <BR>\n" );
document.write( "Start with graph of y=x^2<BR>\n" );
document.write( "(x-2) moves all the points 2 to the right.<BR>\n" );
document.write( "When x=2, y=-9; -9 moves all the points 9 down.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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