document.write( "Question 1174714: Solve the compound inequality. Other than ∅, use interval notation to express the solution set and graph the solution set on a number line.\r
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Algebra.Com's Answer #800167 by AnlytcPhil(1806) $\"\"$ $\"About$

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document.write( "Add 12 to all three sides:\r\n" );
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document.write( "Divide all three sides by -4, and since we are\r\n" );
document.write( "dividing by a negative number, the inequalities\r\n" );
document.write( "reverse their direction:\r\n" );
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document.write( "It is most common to leave final inequalities in terms of\r\n" );
document.write( "≤ and < rather that ≥ and >\r\n" );
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document.write( "Since we want interval notation, we plot it on a number line\r\n" );
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document.write( "-----o=======●---------------------\r\n" );
document.write( "-6  -4  -3  -2  -1   -0   1   2   3  \r\n" );
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document.write( "The interval notation is an abbreviation for the graph on a number line:\r\n" );
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document.write( "    (-4,-2]\r\n" );
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document.write( "Edwin

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