Question

How do you find the slope of a line perpendicular to C(13, 2), D(15, -5)?

Answer 1

the slope is `2/7`

Explanation:

The slope of the line CD is

`m=(-5-2)/(15-13)=-7/2`

The slope of the line perpendicular to CD is:

`m_1=-1/m=2/7`