document.write( "Question 161421: CAN SOMEONE HELP PLEASE:\r
\n" ); document.write( "\n" ); document.write( "Express the interval in set-builder notation and graph the interval on a number line.\r
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Algebra.Com's Answer #118899 by jim_thompson5910(35256)\"\" \"About 
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I'm assuming that the interval is \r
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\n" ); document.write( "\n" ); document.write( "note: the variable may change (ie it's not always \"x\")\r
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\n" ); document.write( "\n" ); document.write( "Take note of the open circle at the endpoint
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