P,Q abd R are point with coordinates (0,-1),(2,1) and (5,4) respectively (a) write PQ and QR as column vectors (b) what is the relationahip between PQ and QR ?

P,Q abd R are point with coordinates (0,-1),(2,1) and (5,4) respectively
(a) write PQ and QR as column vectors
(b) what is the relationahip between PQ and QR ?
(c) what can you say about the point |PQ| and | QR|
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