document.write( "Question 1174249: y<2x+2
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Algebra.Com's Answer #799646 by ikleyn(52794) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "You want to solve this system of two inequalities\r\n" );
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document.write( "   y <= 2x + 2     (1)\r\n" );
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document.write( "   y >= 1 - x      (2)\r\n" );
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document.write( "by graphing.\r\n" );
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document.write( "So, plot two straight lines in a coordinate plane \r\n" );
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document.write( "    y = 2x + 2      (1')\r\n" );
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document.write( "    y = 1 - x       (2')\r\n" );
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document.write( "    \r\n" );
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document.write( "        Plot y = 2x+2 (red)  and  y = 1-x (green)\r\n" );
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document.write( "The solution set to the given inequalities are the points of the coordinate plane, \r\n" );
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document.write( "    that are, at the same time,  below the red line  AND  above (or on) the green line.\r\n" );
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document.write( "These points are inside one of the four angles, formed by the two lines, where you see the words \"the solution set\".\r\n" );
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\n" ); document.write( "\n" ); document.write( "On solving inequalities in two variables, look into the lesson\r
\n" ); document.write( "\n" ); document.write( " - Solving systems of inequalities in two unknown graphically in a coordinate plane \r
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