The ray AB
Not necessarily. Coplanar means that points lie on the same plane whereas collinear means that points lie on the same line. Points on a plane do not necessarily lie along the same line.
Invariants are points that remain the same under certain transformations. You could plug the points into your transformation and note that what does in is the same as what comes out. The details depend on the transformation.
... in the same plane.
translation
It's a translation.
beyond
Beyond
There is only one kind of line, but there are a few other line-like figures in the same family. Line: An object defined by at least two points and extends infinitely in both directions Ray: An object defined by at least two points, has a definite endpoint, and extends infinitely in one direction Line segment: An object defined by at least two points and has definite endpoints
translation
A translation.
Translation
translation
translation
reflection
Because at any point IN the rainbow, the angle between the direction to the sun and the direction to your eye has to be the same angle. The only bunch of different points there can be that will do that is a bunch of points that are all on the same circle.
Coplanar points lie on the same plane. A plane is a flat, two-dimensional surface that extends infinitely in all directions. Coplanar points can be thought of as points that all lie in the same plane and can be connected by straight lines without leaving that plane.
Because from every point on the rainbow, the angle between the direction to thesun and the direction to your eye has to be the same angle. The only collectionof points that can do that is all the points on a circle.