Attachment 24043

Hi there,

I'm stuck on the above question (part b). The part i'm actually stuck on is adding vector components (I think this is what it's called)

ABCD is a rectangle. I have the coordinates of A (4, -2, 3), B (2, 0, -1) and C (5.5, 5.5, 0).

To find D i'm told by the markscheme that OD = OA + BC. What does this actually mean?

I don't have anything like this in the book i've been studying from so i've no idea how to complete the question.

Thank you for any help