Question

Four points are P(0,4), Q(0,3), R(2,0), S(0,5). Which three of them are collinear?​

Answer 1

Answer: P, Q and S

In other words, everything but point R.

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Explanation:

The term "collinear" means "points that fall on the same straight line". Any two points are always guaranteed to be collinear; however the same can't be said for any 3 random points.

In this case, points P, Q and S are all on the vertical y axis which is why they are collinear.

The graph is shown below.