# Algebra

posted by .

How can you determine if two lines are perpendicular?

• Algebra -

Their slopes are opposite reciprocals

e.g.
if one line has a slope of 2/5, then its perpendicular has a slope of -5/2

## Similar Questions

1. ### alg.

Determine which two equations represent perpendicular lines. a) y=2x - 6 b) y=1/2x + 6 c) y= -1/2x + 6 d) y= 1/2x - 6 I know that perpendicular lines have negative recipricals, but I'm having trouble with this problem. I think the …
2. ### algebra

how can you determine if two lines are perpendicular?
3. ### algebra

how can you determine if two lines are perpendicular?
4. ### algebra

HOW CAN YOU DETERMINE IF TWO LINES ARE PERPENDICULAR?
5. ### algebra

HOW CAN YOU DETERMINE IF TWO LINES ARE PERPENDICULAR?
6. ### algebra need by 10p cst

How can you determine if two lines are perpendicular?
7. ### math needed by 12midnight

How can you determine if two lines are perpendicular?
8. ### MATH

How can you determine if two lines are perpendicular?
9. ### MATH

Post your 50 or more word response to the following in the assignment link: How can you determine if two lines are perpendicular?
10. ### geometry

Martin drew a pair of perpendicular lines and a pair of parallel lines. Which of these statements best compares the pairs of perpendicular and parallel lines?

More Similar Questions