BASICS OF 3 D GEOMETRY

Image of a point (x,y,z) in the xy plane is (x,y,-z).

Image of (x,y,z ) in the YZ plane is (-x,y,z)

Image of ( x,y,z) in the XZ plane is (x,-y,z)

Also learn about the distance formula and section formula by viewing these problems. In Section formula, we have internal and external division. To understand more, watch these videos.