SOLUTION: lnes a and b are perpendicular. The slope of line a is given. What is the slope of line b? 2/5

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Question 57886: lnes a and b are perpendicular. The slope of line a is given. What is the slope of line b?
2/5
Answer by funmath(2933) About Me  (Show Source):
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lines a and b are perpendicular. The slope of line a is given. What is the slope of line b?
2/5
:
Perpendicular lines have slopes that are negative reciprocals of each other, so change the sign and stand the slope on its head.
Line a has a slope of 2/5
then line b has a slope of -5/2
Happy Calculating!!!