# Concept derivation guides

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Concept guide



## [Points, lines and planes: deciding incidence in the coordinate model](/en/derivations/derivation-mko-point-line-plane-01/?from=%2Fen%2Fderivations%2F%3Fq%3Dmko-point-line-plane)

In the coordinate-plane model ℝ², let P=(1,2) and Q=(3,6). Decide whether R=(4,8) and S=(2,5) lie on the line L through P and Q, and hence whether P, Q, R are collinear.

Points, lines, and planes

derivation-mko-point-line-plane-01





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