document.write( "Question 146903: 13) Graph the inequality on a plane
\n" ); document.write( " 5x+6y <= 30
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Algebra.Com's Answer #107289 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"5x%2B6y%3C=30\" Start with the given inequality.\r
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\n" ); document.write( "\n" ); document.write( "\"5x%2B6y=30\" Replace the inequality sign with an equals sign.\r
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\n" ); document.write( "\n" ); document.write( "\"6y=30-5x\" Subtract \"5x\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"y=%2830-5x%29%2F%286%29\" Divide both sides by \"6\" to isolate \"y\".\r
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\n" ); document.write( "\n" ); document.write( "\"y=-%285%2F6%29x%2B5\" Rearrange the terms.\r
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\n" ); document.write( "\n" ); document.write( "So in order to plot \"5x%2B6y%3C=30\" or \"y%3C=-%285%2F6%29x%2B5\" (which is the same thing), we need to plot the equation \"y=-%285%2F6%29x%2B5\" first.
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C-%285%2F6%29x%2B5%29+\" Graph of \"y=-%285%2F6%29x%2B5\"\r
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\n" ); document.write( "\n" ); document.write( "Now plug in a test point (0,0) into the inequality \"y%3C=-%285%2F6%29x%2B5\"\r
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\n" ); document.write( "\n" ); document.write( "\"y%3C=-%285%2F6%29x%2B5\" Start with the given inequality.\r
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\n" ); document.write( "\n" ); document.write( "\"0%3C=-%285%2F6%29%2A%280%29%2B5\" Plug in \"x=0\" and \"y=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"0%3C=5\" Evaluate and simplify.\r
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\n" ); document.write( "\n" ); document.write( "Since the inequality is true, this means that we shade the entire region that contains the point (0,0)\r
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\n" ); document.write( "\n" ); document.write( "In other words, we simply shade the entire region that is below the line.\r
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\n" ); document.write( "\n" ); document.write( " Graph of \"y%3C=-%285%2F6%29x%2B5\" with the shaded region in green\r
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