# How do you write an equation of a line passing through (0, 4), perpendicular to #y = x#?

##### 1 Answer

May 28, 2017

#### Explanation:

We have been given one point

It lines are perpendicular, then one slope is the negative reciprocal of the other.

In

The slope perpendicular to this will be

The point we have been given is a specific point:

It is the