document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=676328>Question 676328</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do i graph y=-x^2+2x+1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #420296 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=420296\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the x intercepts, there will be two as indicated by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2 ALIGN=MIDDLE  ALT=\"x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-%28x%5E2-2x-1%29+=+0 ALIGN=MIDDLE  ALT=\"-%28x%5E2-2x-1%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use quadratic equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-%28-2%29%2B-sqrt%28%28-2%29%5E2-4%281%29%28-1%29%29%29%2F%28%282%29%281%29%29%29 ALIGN=MIDDLE  ALT=\"x+=+%28-%28-2%29%2B-sqrt%28%28-2%29%5E2-4%281%29%28-1%29%29%29%2F%28%282%29%281%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%282+%2B-+sqrt%284--4%29%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x+=+%282+%2B-+sqrt%284--4%29%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%282+%2B-+sqrt%288%29%29%2F2 ALIGN=MIDDLE  ALT=\"x+=+%282+%2B-+sqrt%288%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%282+%2B-+2sqrt%282%29%29%2F2 ALIGN=MIDDLE  ALT=\"x+=+%282+%2B-+2sqrt%282%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+1+%2B-+sqrt%282%29 ALIGN=MIDDLE  ALT=\"x+=+1+%2B-+sqrt%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 1 + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%282%29 ALIGN=MIDDLE  ALT=\"sqrt%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 2.4<BR>\n" );
document.write( "x = 1 - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%282%29 ALIGN=MIDDLE  ALT=\"sqrt%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = -.4<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Choose a couple of values for x and solve for y<BR>\n" );
document.write( "x: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-x%5E2%2B2x%2B1 ALIGN=MIDDLE  ALT=\"-x%5E2%2B2x%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" >: (x,y)<BR>\n" );
document.write( "3: -(3^2) + 2(3) + 1 = -9+6+1 = -2: Plot (3,-2)<BR>\n" );
document.write( "2: -(2^2) + 2(2) + 1 = -4+4+1 = 1: Plot (2,1)<BR>\n" );
document.write( "1: -(1^2) + 2(1) + 1 = -1+2+1 = 2: Plot (1,2)<BR>\n" );
document.write( "0: -(0^2) + 2(0) + 1 = 0+0+1 = 1: Plot (0,1)<BR>\n" );
document.write( "-1: -(-1^2) + 2(-1) +1 = -1-2+1 = -2: Plot (-1,-2)<BR>\n" );
document.write( "-2: -(-2^2) + 2(-2) +1 = -4-4+1 = 1: Plot (-2,1)<BR>\n" );
document.write( "-3: -(-3^2) + 2(-3) +1 = -9-6+1 = -14: Plot (-3,-14)<BR>\n" );
document.write( "...\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-5%2C10%2C-20%2C5%2C-x%5E2%2B2x%2B1%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C200%2C-5%2C10%2C-20%2C5%2C-x%5E2%2B2x%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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