What do you recall about transformations in a plane? what is important to remember about transformations? what's the difference between rigid transformations and nonrigid transformations?

1)

Any image in a plane could be altered by using different operations, or transformations. Here are the most common types:

2)

Transformations map one set of points onto another set of points, generally with the purpose of changing the position, size, and/or shape of the figure made up by the first set of points. The first set of points, from the domain of the transformation, is called the set of pre-images, whereas the second set of points, from the range of the transformation, is called the set of images. Therefore, a transformation maps each pre-image point to its image point.

3)

Reflections, translations, rotations, and combinations of these three transformations are "rigid transformations".

      example is dilation.  

my answer got deleted but it's a

step-by-step explanation: