document.write( "Question 1203418: solve by addition of line segments show whether the points a(-3,0), b(-1,-1) and c(5,-4) lie on a straight line.\r
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Algebra.Com's Answer #838967 by mccravyedwin(408)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Although Ikleyn is correct that using slopes is the quickest \r\n" );
document.write( "way to show that points are collinear, it is ABSOLUTELY WRONG  \r\n" );
document.write( "to do this problem using slopes, because of the words\r\n" );
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document.write( "            \"solve by addition of line segments\"\r\n" );
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document.write( "are clearly stated in the instructions.  Following directions\r\n" );
document.write( "is absolutely necessary.  \r\n" );
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document.write( "When I taught this I always taught both methods for instructional\r\n" );
document.write( "purposes. \r\n" );
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document.write( "Edwin
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