document.write( "Question 1070069: y = |-2x+5|-|2x-5|
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\n" ); document.write( "if x<-2.5
\n" ); document.write( "if x>2.5
\n" ); document.write( "if -2.5≤x≤2.5 \r
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Algebra.Com's Answer #685174 by Edwin McCravy(20064)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "y is constantly 0 because those absolute values are equal. \r\n" );
document.write( "That's because what's between the first pair of absolute \r\n" );
document.write( "value bars is -1 times what's between the second pair.  So \r\n" );
document.write( "it's just equivalent to y = 0 for all values.  It is not \r\n" );
document.write( "necessary to take those special cases indicated.  You can \r\n" );
document.write( "show y = 0 for ALL values of x this way:\r\n" );
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document.write( "y = |-2x+5| - |2x-5|\r\n" );
document.write( "y = |-1(2x-5)| - |2x-5|\r\n" );
document.write( "y = |-1||2x-5| - |2x-5|\r\n" );
document.write( "y = 1|2x-5| - |2x-5|\r\n" );
document.write( "y = |2x-5| - |2x-5|\r\n" );
document.write( "y = 0\r\n" );
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document.write( "Edwin
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