document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=538178>Question 538178</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hey there i need help i mean SERIOUS help on graping systems of equation...here is the equation {y=x+3<BR>\n" );
document.write( "                 y=x-1<BR>\n" );
document.write( "i need to graph such thing like that and i dnt got it plz help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #353133 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20055)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=353133\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I'll just graph one line:\r<BR>\n" );
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document.write( "y=x+3\r<BR>\n" );
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document.write( "Make up a number, any number.  It can be any number if your graph<BR>\n" );
document.write( "is big enough, but make is small so you won't need a big graph.<BR>\n" );
document.write( "Let's pick a number to substitute for x. say 2.  Substitute 2 for<BR>\n" );
document.write( "x in \r<BR>\n" );
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document.write( "y = x + 3<BR>\n" );
document.write( "y = 2 + 3<BR>\n" );
document.write( "y = 5\r<BR>\n" );
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document.write( "So that means when x is 2, y is 5.  So that makes a point (2,5).<BR>\n" );
document.write( "Plot that point.  It's in line with 2 on the x-axis and it's also in<BR>\n" );
document.write( "line with 5 on the y axis.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C400%2C-7%2C7%2C-7%2C7%2C+grid%281%29%2C+circle%282%2C5%2C.1%29%2Ccircle%282%2C5%2C.15%29%2C%0D%0Acircle%282%2C5%2C.175%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Make up aother number, any number.  Let's pick -1.  Substitute -1 for<BR>\n" );
document.write( "x in \r<BR>\n" );
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document.write( "y = x + 3<BR>\n" );
document.write( "y = -1 + 3<BR>\n" );
document.write( "y = 2\r<BR>\n" );
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document.write( "So that means when x is -1, y is 2.  So that makes a point (-1,2).<BR>\n" );
document.write( "Plot that point.  It's in line with -1 on the x-axis and it's also in<BR>\n" );
document.write( "line with 2 on the y axis.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C400%2C-7%2C7%2C-7%2C7%2C+grid%281%29%2C+circle%282%2C5%2C.1%29%2Ccircle%282%2C5%2C.15%29%2C%0D%0Acircle%282%2C5%2C.175%29%2C+circle%28-1%2C2%2C.1%29%2Ccircle%28-1%2C2%2C.15%29%2C%0D%0Acircle%28-1%2C2%2C.175%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Make up aother number, any number.  Let's pick 0.  Substitute 0 for<BR>\n" );
document.write( "x in \r<BR>\n" );
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document.write( "y = x + 3<BR>\n" );
document.write( "y = 0 + 3<BR>\n" );
document.write( "y = 3\r<BR>\n" );
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document.write( "So that means when x is 0, y is 3.  So that makes a point (0,3).<BR>\n" );
document.write( "Plot that point.  Now since x is 0, that ,eans that the point is ON<BR>\n" );
document.write( "the y-axis at the number 3, like this.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C400%2C-7%2C7%2C-7%2C7%2C+grid%281%29%2C+circle%282%2C5%2C.1%29%2Ccircle%282%2C5%2C.15%29%2C%0D%0Acircle%282%2C5%2C.175%29%2C+circle%28-1%2C2%2C.1%29%2Ccircle%28-1%2C2%2C.15%29%2C%0D%0Acircle%28-1%2C2%2C.175%29%2C+circle%280%2C3%2C.1%29%2Ccircle%280%2C3%2C.15%29%2C%0D%0Acircle%280%2C3%2C.175%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Make up aother number, any number.  Let's pick -5 this time.  <BR>\n" );
document.write( "Substitute -5 for x in \r<BR>\n" );
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document.write( "y = x + 3<BR>\n" );
document.write( "y = -5 + 3<BR>\n" );
document.write( "y = -2\r<BR>\n" );
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document.write( "So that means when x is -5, y is -2.  So that makes a point (-5,-2).<BR>\n" );
document.write( "Plot that point. It's in line with -5 on the x-axis and it's also in<BR>\n" );
document.write( "line with -2 on the y axis.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C400%2C-7%2C7%2C-7%2C7%2C+grid%281%29%2C+circle%282%2C5%2C.1%29%2Ccircle%282%2C5%2C.15%29%2C%0D%0Acircle%282%2C5%2C.175%29%2C+circle%28-1%2C2%2C.1%29%2Ccircle%28-1%2C2%2C.15%29%2C%0D%0Acircle%28-1%2C2%2C.175%29%2C+circle%280%2C3%2C.1%29%2Ccircle%280%2C3%2C.15%29%2C%0D%0Acircle%280%2C3%2C.175%29%2C+circle%28-5%2C-2%2C.1%29%2Ccircle%28-5%2C-2%2C.15%29%2C%0D%0Acircle%28-5%2C-2%2C.175%29++%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " )}}}\r<BR>\n" );
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document.write( "We could keep on getting points, but that'e nough.  Now take a<BR>\n" );
document.write( "ruler and draw a line through those points.  They will always <BR>\n" );
document.write( "line up line that if you don't make a mistake.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C400%2C-7%2C7%2C-7%2C7%2C+grid%281%29%2C+circle%282%2C5%2C.1%29%2Ccircle%282%2C5%2C.15%29%2C%0D%0Acircle%282%2C5%2C.175%29%2C+circle%28-1%2C2%2C.1%29%2Ccircle%28-1%2C2%2C.15%29%2C%0D%0Acircle%28-1%2C2%2C.175%29%2C+circle%280%2C3%2C.1%29%2Ccircle%280%2C3%2C.15%29%2C%0D%0Acircle%280%2C3%2C.175%29%2C+circle%28-5%2C-2%2C.1%29%2Ccircle%28-5%2C-2%2C.15%29%2C%0D%0Acircle%28-5%2C-2%2C.175%29%2C+green%28line%28-11%2C-8%2C12%2C15%29%29++%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now do the same thing with the other equation,\r<BR>\n" );
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document.write( " y=x-1\r<BR>\n" );
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document.write( "Plot some points on the same graph on which you drew <BR>\n" );
document.write( "the other one, and you'll gat another line parallel to that one.\r<BR>\n" );
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document.write( "Edwin</pre> </SPAN>\n" );
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