document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=278655>Question 278655</A>: <I><SPAN STYLE=\"word-break: break-all;\"> y=-2x² </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #202730 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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/cgi-bin/show-face.mpl?user=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=202730\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> From your equation, I can see that this is a quadratic equation becuase the biggest exponent is 2.  Since the value in front of the x^2 term is negative, we have an upside down parabola.\r<BR>\n" );
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document.write( "I will make 4 points for you to graph on the xy-plane.<BR>\n" );
document.write( "I will pick different values for x.  \r<BR>\n" );
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document.write( "Let x = 0\r<BR>\n" );
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document.write( "y = -2(0)^2\r<BR>\n" );
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document.write( "y = 0\r<BR>\n" );
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document.write( "Our first point is (0,0).\r<BR>\n" );
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document.write( "Let x = 1\r<BR>\n" );
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document.write( "y = -2(1)^2\r<BR>\n" );
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document.write( "y = -2(1)\r<BR>\n" );
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document.write( "y = -2\r<BR>\n" );
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document.write( "Our second point is (1,-2).\r<BR>\n" );
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document.write( "Let x = -3\r<BR>\n" );
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document.write( "y = -2(-3)^2\r<BR>\n" );
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document.write( "y = -2(9)\r<BR>\n" );
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document.write( "y = -18\r<BR>\n" );
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document.write( "Our third point is (-3,-18).\r<BR>\n" );
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document.write( "How about one more point?\r<BR>\n" );
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document.write( "Let x = -4\r<BR>\n" );
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document.write( "y = -2(-4)^2\r<BR>\n" );
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document.write( "y = -2(16)\r<BR>\n" );
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document.write( "y = -32\r<BR>\n" );
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document.write( "Our fourth point is (-4,-32).\r<BR>\n" );
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document.write( "You have four points.  Now, you can plot them on the xy-plane.\r<BR>\n" );
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