document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=138529>Question 138529</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i do not understand th question 2x - y = -4 so please help me thankyou </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #101121 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=101121\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x+-+y+=+-4 ALIGN=MIDDLE  ALT=\"2x+-+y+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > is a linear equation containing two variables. It is in the 'standard form' of a line.\r<BR>\n" );
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document.write( "You can plot this several ways to see what this relationship is.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x+-+y+=+-4 ALIGN=MIDDLE  ALT=\"2x+-+y+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-y+=+-2x+-4+ ALIGN=MIDDLE  ALT=\"-y+=+-2x+-4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+2x+%2B+4 ALIGN=MIDDLE  ALT=\"+y+=+2x+%2B+4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If you want to make a table, pick a vlaue for x (say 3) and then plug that into the equation to find the y vlaue that make that equation true<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+2x+%2B+4 ALIGN=MIDDLE  ALT=\"+y+=+2x+%2B+4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+2%2A3+%2B+4 ALIGN=MIDDLE  ALT=\"+y+=+2%2A3+%2B+4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+6+%2B+4 ALIGN=MIDDLE  ALT=\"+y+=+6+%2B+4\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=+10 ALIGN=MIDDLE  ALT=\"+y+=+10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So one point can be plotted as (3,10)<BR>\n" );
document.write( "Pick more values for x and find the values for y that result from plugging into the equation.\r<BR>\n" );
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document.write( "Once you get comfortable with lines, you will quickly see that all you need to do is plot two points and then draw the line that includes those points.\r<BR>\n" );
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document.write( "You will also find that picking 0 for x is a good choice, since it usually makes for an easy calculation.\r<BR>\n" );
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document.write( "There are other forms for linear eqauation (point/slope and sloep/intercept). All of these different forms as well as plotting using a table yield the same graph.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28600%2C400%2C+-10%2C10%2C+-10%2C10%2C+2x+%2B+4%29+ ALIGN=MIDDLE  ALT=\"graph%28600%2C400%2C+-10%2C10%2C+-10%2C10%2C+2x+%2B+4%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "I hope this helps you some! </SPAN>\n" );
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