Question

What is the slope of any line perpendicular to the line passing through `(30,39)` and `(18,10)`?

Answer 1

`m_2 = -29/12`

Explanation:

Line 2 is perpendicular to line 1. Line 2's slope is the inverse of line 1's.
`m_1 = (y_2 - y_1)/(x_2 - x_1)`
`m_1 = (39-10)/(30-18)`
`m_1 = 29/12`
Therefore `m_2 = -29/12`.