Geometry

Question Analysis：
This question involves analyzing the effect of a glide reflection on a point's coordinates.
The main focus is on identifying the line of reflection based on movement patterns in the coordinate plane.

Key Concept Explanation：
A glide reflection is: reflection over a line + translation parallel to that line
First, check whether the y-values changed in a “mirror” fashion (indicating a reflection over a horizontal line)
Then, check if the x-values shifted uniformly (indicating a horizontal translation)

Step-by-Step Solution：
Point A(2, 5) → A′(6, -5):
x changed from 2 → 6 → change of +4
y changed from 5 → -5 → symmetrical about y = 0
→ Because: 5 and -5 are symmetric across y = 0
So the reflection line must be y = 0 (horizontal), and translation is 4 units right (parallel to y = 0)

Option Analysis：
A – ✔ y = 0 → matches reflection c...