You can't take away 6 from 2 but you can switch them and get 6-2 and that's =4 10-8=2 7-5=2
You need three non-collinear points to name a plane.
Non-collinear means "not on the same straight line". So these three points can't all lie on the same straight line. If three points do lie on the same straight line, then it is impossible to generate a single unique plane.
Can help me plzz f) i) dont need