THE STRAIGHT, THE POINT AND THE PLANE. ITS IMPORTANCE

THESE GRAPHICS NOT ONLY REPRESENT LINES BUT FIGURES IN THE SPACE, IS THAT OF ITS IMPORTANCE. HERE I SHOW YOU A SET OF FOUR PARALELEPIPEDOS

The point is the first geometric object of all the others, it has no dimension. It is the intersection of two straight lines. It is represented with a small dot (.). The line can be considered as a particular point set, it has neither origin nor end. CARTESIAN PLANE

IT IS POSSIBLE TO OBSERVE THE 4 SEPARATED CUBES IN THE DIFFERENT QUADRANTS

SEE THE COMPARISON OF THE FIGURES