document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=4776>Question 4776</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1.) when solving a linear inequality, why do you always solve for y?\r<BR>\n" );
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document.write( "2.) when graphing a linear inequality, how do you know if the inequality represents the area above or below the line?\r<BR>\n" );
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document.write( "3.) why is it true that any two points satisfying a linear equation will give you the same graph for the line represented by the equation? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #2273 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=2273\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. always for y? in a linear system there is just 1 unknown and typically it is x --> you want to find where the line crosses the x-axis, this is where y=0.\r<BR>\n" );
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document.write( "2. you graph the equality --> the line, eg y=2x. Then if we want the region defined by y>2x or y<2x, if you cannot see this, just pick any point you like - not on the line, just a random point...how about (6,0).\r<BR>\n" );
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document.write( "If we put these into the equation y=2x, we get 0 and 12 ie 0<12 so, whichever half the pont (6,0) is in, this is y<2x, so y>2x is the other half.\r<BR>\n" );
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document.write( "Hope that has explained it well enough?\r<BR>\n" );
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document.write( "3. the straight line is the physical representation of the equation. That is why we draw graphs, because they are a visual insight into the line (or curve). As such, any point on the line (or curve) will satisfy the equation.\r<BR>\n" );
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document.write( "Hope this is all clear? They are very good questions to ask. I just hope i have answered them well enough - pictures are more helpful with this sort of question.\r<BR>\n" );
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document.write( "jon<BR>\n" );
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