document.write( "Question 1207369: Simplify |x-1| + |x-2| given that x is in the open interval (1,2). \n" );
document.write( "Note: \n" );
document.write( "The book tells me that since x > 1, then x - 1 is positive. \n" );
document.write( "So, |x-1| = x - 1. \n" );
document.write( "Where does it say that x > 1? \n" );
document.write( "The book goes on to say that x < 2. \n" );
document.write( "Since x < 2, then x - 2 is negative. \n" );
document.write( "So, |x-2| = -(x-2) = -x + 2. \n" );
document.write( "Where does it say that x < 2? \n" );
document.write( "The author went in to do this: \n" );
document.write( "x - 1 - x + 2 = 1. \n" );
document.write( "The answer is 1. \n" );
document.write( "However, my two questions are: \n" );
document.write( "1. Where does it say that x > 1? \n" );
document.write( "2. Where does it say that x < 2?\r \n" );
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