# How do you write an equation in point slope form that passes through P(-3,-2) and perpendicular to y=3?

##### 1 Answer

It is not possible to write an equation for the perpendicular line in point-slope form.

It is possible to write it in the form

#### Explanation:

In general, if a line has slope

The line

The slope is the multiplier of

It is possible to construct *an* equation for *a* perpendicular line by following these steps:

(1) Swap

(2) Reverse the sign of the term in

The combination of these two geometrical operations is equivalent to rotating by a right angle.

Starting with