document.write( "Question 141713: Graph on a number line where x is a real number.
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Algebra.Com's Answer #103254 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
\"-3+%3C+x+%3C=5\"
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document.write( "A number line is this:\r\n" );
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document.write( "------------------------------------------\r\n" );
document.write( "-6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7\r\n" );
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document.write( "This:\r\n" );
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document.write( "\"-3+%3C+x+%3C=5\"\r\n" );
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document.write( "means you are to darken the part between -3 and 5\r\n" );
document.write( "EXcluding 3 (because of the <) but INcluding 5 \r\n" );
document.write( "(because of the <. To show that you EXclude\r\n" );
document.write( "the -3, you put an open circle there. To indicate\r\n" );
document.write( "that you INclude the 5, you put a darkened circle \r\n" );
document.write( "there, like this:\r\n" );
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document.write( "----------o=======================•--------\r\n" );
document.write( "-6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7\r\n" );
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document.write( "That's all there is to it.  Some textbooks use a parenthesis to\r\n" );
document.write( "show exclusion and a bracket to show inclusion.  If you have one\r\n" );
document.write( "of those books, then you should write it this way:\r\n" );
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document.write( "----------(=======================]--------\r\n" );
document.write( "-6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7\r\n" );
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document.write( "This way is a little better because it gets you ready to\r\n" );
document.write( "learn about interval notation, which is just an abbreviation\r\n" );
document.write( "for that number line graph above.  That abbreviation is this:\r\n" );
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document.write( "        (-3,5]\r\n" );
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document.write( "Edwin
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