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document.write( "Notice that the line cuts right across the corners of the grid \r\n" );
document.write( "squares of the graph paper.\r\n" );
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document.write( "The upper (blue) part of the line [from (6,0) to (9,3) ]\r\n" );
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document.write( "cuts through the corners of 3 grid squares. \r\n" );
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document.write( "and the lower (red) part of the line [from (2,-4) to (6,0) \r\n" );
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document.write( "cuts through the corners of 4 grid squares.\r\n" );
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document.write( "So the blue part of the line is ¾ as long as the red part.\r\n" );
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document.write( "So one possible answer is (6,0).\r\n" );
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document.write( "But the answer could also be like the graph below\r\n" );
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document.write( "and the answer could be (5,-1).\r\n" );
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\r\n" );
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document.write( "So there are two possible answers (6,0), and (5,-1), depending on\r\n" );
document.write( "whether the upper (blue) part of the line is ¾ as long as the \r\n" );
document.write( "lower (red) part of the line, or vice-versa.\r\n" );
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document.write( "Edwin
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