Geometry

Question Analysis:
This question asks the student to identify a specific transformation (a translation) that preserves congruence.
The main focus is distinguishing a rigid translation from other transformations.

Key Concept Explanation:
A translation involves sliding a figure a certain distance in a certain direction.
It’s a rigid transformation, so it keeps the shape and size the same.

Step-by-Step Solution:
Review each option:
Option A: A pure slide – this is a translation.
Options B–D involve dilation, rotation, and reflection.
Only Option A preserves both size and orientation via translation.

Option Analysis:
A. Correct – A translation is described accurately and is a rigid motion.
B. Incorrect –...