Question

The lines below are perpendicular. If the slope of the green lines in 3/2, what is the slope of the red line

Answer 1

slope of red line = -
`(2)/(3)`

Explanation:

the product of the slopes of perpendicular lines = - 1

given m =
`(3)/(2)` then

`m_(red line)` = -
`(2)/(3)` ← product of slopes = - 1

Answer 2

-2/3

Explanation:

Where 2 lines are perpendicular, the slope of one = - 1 / slope of the other.

Thus the slope of the red line is - 1 / 3/2

= -2/3