Unit Vector from Point A to Point B | Simple Vector Problem

[graycolor]

The unit vector that has the same direction as the vector from the point A=(2,2) to the point B=(4,0) is?

I chose to find the length so that would be A-B right?
I got (-2,2) as the vector between the two points.
I found its magnitude which was 2, then I divided the vector <-2,2> so it'll be a unit vector.

My answer was <-1,1> but I'm wrong.

 

[margaret37]

You're pretty close

Magnitude = sqrt(deltaX^2 + deltaX^2) <> 2

And you want the vector going in the direction that would get you from a to b. So you want to subtract b-a to get the direction

 

[graycolor]

You're pretty close

Magnitude = sqrt(deltaX^2 + deltaX^2) <> 2

And you want the vector going in the direction that would get you from a to b. So you want to subtract b-a to get the direction

Ahah, Thank you

Sometimes my mind keeps flipping numbers around and the strange thing is I repeat the same mistakes over and over its like a disease or something haha.

Thanks,

Ray