<PRE><B>Question 311</B>
How do you determine which part of the graph you have to shade in, when 
solving systems of linear inequalities?&lt;font face = &quot;courier new&quot; size = 2 color = &quot;blue&quot;&gt;&lt;b&gt;
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Solve the inequality for x or y, whichever is more convenient.
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If you solve for x, and the inequality starts &quot; x &gt; &quot; or &quot;x &lt;u&gt;&gt;&lt;/u&gt; &quot;, shade
the area to the RIGHT side of the line.       
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If you solve for x, and the inequality starts &quot; x &lt; &quot; or &quot;x &lt;u&gt;&lt;&lt;/u&gt; &quot;, shade
the area to the LEFT side of the line.
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If you solve for y, and the inequality starts &quot; y &gt; &quot; or &quot;y &lt;u&gt;&gt;&lt;/u&gt; &quot;, shade
the area to the UPPER side of the line.
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If you solve for y, and the inequality starts &quot; y &lt; &quot; or &quot;y &lt;u&gt;&lt;&lt;/u&gt; &quot;, shade
the area to the LOWER side of the line.
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Edwin&lt;/b&gt; 
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