So, the question is "Are these points collinear?"
I've done the working and the two calculated gradients are not the same, and am about to write the following statement:
mEO mOF, therefore EO and OF are not parallel
O is not a common point, therefore E, O and F are not collinear"
My main concern is with the "O is not a common point, therefore E, O and F are not collinear" part, does that justify itself? We didn't do one of these in class, and I want to follow the same technique used to write the statement when points are collinear, so that I remember it better.
If anyone could confirm, that would be great!