Question

Which of the following pairs of slopes are of perpendicular lines?

1/2 and 2
3/4 and -1 1/3
-2/5 and -5/2

Answer 1

If the slope is \(x\), then the slope of the perpendicular line is the negative of its flipped fraction.

Answer 2

Flipped fraction \(\Longrightarrow \large{1 \over x}\)

Negative \(\Longrightarrow {-1 \over x}\)

Answer 3

here's an example of a perpendicular slope

for example you have 2/3

the perpendicular slope is - 3/2 or -1 1/2

Answer 4

do you get that?

Answer 5

no