Question

What is the slope of a line that is perpendicular to a slope of 8/5?

Answer 1

`-5/8`

Explanation:

Product of slopes of two perpendicular lines is always `-1`.

Hence slope of a line that is perpendicular to a slope of `8/5` is given by

`-1-:8/5`

= `-1xx5/8`

= `-5/8`