document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=62389>Question 62389</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 18. Question about this equation.  y=-x^2-2x\r<BR>\n" );
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document.write( "I have a table of values for x\r<BR>\n" );
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document.write( "-3<BR>\n" );
document.write( "-2<BR>\n" );
document.write( "-1<BR>\n" );
document.write( "0<BR>\n" );
document.write( "1\r<BR>\n" );
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document.write( "When I have a negative number for x and the problem is already negative x, does that become a positive automatically? Hope I didn't confuse you with this question. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #43087 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=43087\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 18.  y=-x^2-2x\r<BR>\n" );
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document.write( "I have a table of values for x\r<BR>\n" );
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document.write( "-3<BR>\n" );
document.write( "When x=-3 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%28-3%29%5E2-2%28-3%29 ALIGN=MIDDLE  ALT=\"y=-%28-3%29%5E2-2%28-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%289%29%2B6 ALIGN=MIDDLE  ALT=\"y=-%289%29%2B6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-3 ALIGN=MIDDLE  ALT=\"y=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-2<BR>\n" );
document.write( "When x=-2 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%28-2%29%5E2-2%28-2%29 ALIGN=MIDDLE  ALT=\"y=-%28-2%29%5E2-2%28-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%284%29%2B4 ALIGN=MIDDLE  ALT=\"y=-%284%29%2B4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0 ALIGN=MIDDLE  ALT=\"y=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-1<BR>\n" );
document.write( "When x=-1 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%28-1%29%5E2-2%28-1%29 ALIGN=MIDDLE  ALT=\"y=-%28-1%29%5E2-2%28-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%281%29%2B2 ALIGN=MIDDLE  ALT=\"y=-%281%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1 ALIGN=MIDDLE  ALT=\"y=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "0<BR>\n" );
document.write( "When x=0 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%280%29%5E2-2%280%29 ALIGN=MIDDLE  ALT=\"y=-%280%29%5E2-2%280%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-0-0 ALIGN=MIDDLE  ALT=\"y=-0-0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0 ALIGN=MIDDLE  ALT=\"y=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "1<BR>\n" );
document.write( "When x=1 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%281%29%5E2-2%281%29 ALIGN=MIDDLE  ALT=\"y=-%281%29%5E2-2%281%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-%281%29-2 ALIGN=MIDDLE  ALT=\"y=-%281%29-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-3 ALIGN=MIDDLE  ALT=\"y=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "I hope my demonastration answered your question.  When you substitute numbers in for x, it helps to put them in parentheses to know what exactly your squaring and how your signs are effected.<BR>\n" );
document.write( "Happy Calculating!!!<BR>\n" );
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