Question

One-on-one mapping from one plane to the same plane is called:

congruency.
transformation.
isometry.
None of the choices are correct.

Answer 1

One-on-one mapping from one plane to the same plane is called transformation.

Transformation of a point either in form of translation, reflection, rotation or enlargement will map each coordinate of
`x` and
`y` onto a new coordinate
`x_(1)` and
`y_(1)`