document.write( "Question 1033388: How would I simplify and state the non-permissible values of these questions?\r
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Algebra.Com's Answer #648009 by Edwin McCravy(20063) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Division by zero is not defined in mathematics\r\n" );
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document.write( "So denominators can never be zero, so\r\n" );
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document.write( "The denominator x+2 can never equal to 0,\r\n" );
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document.write( "so we write x+2 ≠ 0 and solve for x\r\n" );
document.write( "              x ≠ -2\r\n" );
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document.write( "The denominator x+1 also can never equal to 0,\r\n" );
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document.write( "so we write x+1 ≠ 0 and solve for x\r\n" );
document.write( "              x ≠ -1\r\n" );
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document.write( "On a number line like this \r\n" );
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document.write( "--------------------------------\r\n" );
document.write( "-6 -5 -4 -3 -2 -1  0  1  2  3  4\r\n" );
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document.write( "We put open circles at -2 and -1\r\n" );
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document.write( "-------------o--o---------------\r\n" );
document.write( "-6 -5 -4 -3 -2 -1  0  1  2  3  4\r\n" );
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document.write( "and shade the rest, putting arrows at the ends,\r\n" );
document.write( "pointing to negative infinity on the left and to\r\n" );
document.write( "positive infinity on the right:\r\n" );
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document.write( "<============o==o==============>\r\n" );
document.write( "-6 -5 -4 -3 -2 -1  0  1  2  3  4\r\n" );
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document.write( "The interval notation is an abbreviation of the\r\n" );
document.write( "above number-line graph:\r\n" );
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document.write( "Edwin

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