congruence

Match the following

Translation is the process of ​ (a)   an image. Rotation is the process of ​ (b)   an image. Reflection is the process of ​ (c)   and dilation is the process of changing the ​ (d)   of an image.

Choose all the transformations that always maintain congruence

Dilation is the process of multiplying by a scale factor in order to enlarge or reduce an image. When the scale factor k​ ​ (a)   the image is enlarged. When the scale factor k​ (b)   then the image is reduced. But, when the scale factor k​ (c)   then the image is congruent.

Which transformation does NOT maintain congruence

Select the grid that is labeled correctly

A rectangle is graphed on a coordinate grid. Which transformations will result in a rectangle that is congruent to the original rectangle?

Which transformations applied to a triangle on a coordinate grid would preserve congruence?

Which transformations applied to a triangle on a coordinate grid would NOT preserve congruence?

A figure is transformed using the rule $$\left(x,\ y\right)\rightarrow\ \left(3x,\ 3y\right)$$ .

Does the rule preserve congruence? Explain.

I will grade this question manually, and it will be worth 5 points.