document.write( "Question 40727: can someone TEACH me how to find a boundry of a line??????(step by step)
\n" ); document.write( "for example--- Y>/ x+3
\n" ); document.write( "y>/ -x+1 \n" ); document.write( "

Algebra.Com's Answer #26174 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
Y>/ x+3 \r
\n" ); document.write( "\n" ); document.write( "I'm not sure what your \"/\" sign means.\r
\n" ); document.write( "\n" ); document.write( "Let's say you want to graph y>x+3\r
\n" ); document.write( "\n" ); document.write( "The boundary line is the graph of y=x+3.
\n" ); document.write( "So, you plot a couple of points such as
\n" ); document.write( "(0,3) and (5,8).
\n" ); document.write( "Then you draw a DASHED LINE through those
\n" ); document.write( "points. That is your boundary line.\r
\n" ); document.write( "\n" ); document.write( "Now you need to determine which side of the
\n" ); document.write( "boundary line is the solution set for the
\n" ); document.write( "inequality.
\n" ); document.write( "So you pick a point that is not on the line,
\n" ); document.write( "such as (0,0)
\n" ); document.write( "You check that point in the origiinal inequlity, as follows:\r
\n" ); document.write( "\n" ); document.write( "Substituting (0,0) into y>x+3 you get 0>0+3
\n" ); document.write( "or 0>3.
\n" ); document.write( "That is not true so you know the side containing (0,0)
\n" ); document.write( "is NOT the solution. The other side is the solution
\n" ); document.write( "so you shade that side.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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