Question

A transformation is applied to a figure to create a new figure on a coordinate grid. which transformation does not preserve congruence?

a. A reflection across the x-axis
b. A translation 7 units down
c. A dilation by a scale factor of 5
d. A rotation of 90° clockwise

Answer 1

Answer is c. Dilation does not preserve congruence

Step-by-step explanation

Because dilation changes the size to bigger or smaller it is similar but not congruent

Reflection = congruent, it mirrors
Translation = congruent, it moves
Rotation = congruent, it turns