Question

Line e has a slope of -2/9. line f is perpendicular to e. what is the slope of f

Answer 1

slope of f =
`(9)/(2)`

Explanation:

Given a line with slope m then the slope of a line perpendicular to it is

`m_(perpendicular)` = -
`(1)/(m)` = -
`(1)/(-(2)/(9) )` =
`(9)/(2)`

Answer 2

9/2

Explanation:

In order to find the slope of a line that is perpendicular to another line, you must find the opposite and reciprocal of that slope. So, you have 2/9, and then 9/2.