document.write( "Question 57907This question is from textbook geometry reasoning
\n" ); document.write( ": lines a and b are perpendicular. THe slope of line a is given. What is the slope of line b?\r
\n" ); document.write( "\n" ); document.write( "a is 1
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Algebra.Com's Answer #39573 by checkley71(8403)\"\" \"About 
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the slope of a perpendicular line is the negative inverse of the slope
\n" ); document.write( "thus if the slope is 1 for line a then -1 is the slope of line b.
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