Help Finding The Direction of a Vector

When finding the direction of a 2D vector, you do it like this:

But what if you want to find the direction of a vector that isn’t coming from the origin like this:

(Not sure if this is the right category to post this in)

Vectors don’t come with a pre-defined coordinate system. The vector is the direction. I’m not sure what you mean.

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If I understand the question correctly–First it looks like you have two vectors, but I can’t
see the tail(s).
Just subtract the tail coordinates from the head/tip, and use the new tip as your origin-translated