document.write( "Question 556959: I don't know how to do this problem, can you help?\r
\n" ); document.write( "\n" ); document.write( "What is the slope of a line perpendicular to the segment AB which has the end point A(-8.1, 4.9) and B(-7.6, 2.9)? express your answer as a common fraction.
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Algebra.Com's Answer #362400 by KMST(5396)\"\" \"About 
You can put this solution on YOUR website!
The slopes of perpendicular lines, multiplied, equals -1.
\n" ); document.write( "The slope of AB can be calculated as the difference of the y coordinates divided by the difference of the x coordinates.
\n" ); document.write( "slope of AB = \"%284.9-2.9%29%2F%28-8.1-%28-7.6%29%29\" = \"2.0%2F%28-8.1%2B7.6%29\" = \"2.0%2F%28-0.5%29\" = \"2%2A2.0%2F%282%2A%28-0.5%29%29\" = \"4%2F%28-1%29\" = \"-4\"
\n" ); document.write( "The slope (m) of the perpendicular line is such that
\n" ); document.write( "\"-4m=-1\" --> \"m\" = \"-1%2F%28-4%29\" = \"1%2F4\"
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