document.write( "Question 57886: lnes 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( "2/5
\n" ); document.write( "

Algebra.Com's Answer #39557 by funmath(2933)\"\" \"About 
You can put this solution on YOUR website!
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( "2/5
\n" ); document.write( ":
\n" ); document.write( "Perpendicular lines have slopes that are negative reciprocals of each other, so change the sign and stand the slope on its head.
\n" ); document.write( "Line a has a slope of 2/5
\n" ); document.write( "then line b has a slope of -5/2
\n" ); document.write( "Happy Calculating!!!
\n" ); document.write( "
\n" );