Geometry

Question Analysis：
This question tests your ability to identify reflected points using a verbal description of a coordinate graph.
The main focus is understanding the relationship between points reflected over the y-axis.

Key Concept Explanation:
Reflection across the y-axis changes the sign of the x-coordinate, but leaves the y-coordinate unchanged.
If two points have the same y but opposite x-values, they are reflections over the y-axis.

Step-by-Step Solution：
Analyze each pair:
P(4, 2) and Q(-4, 2) → same y, opposite x → ✅ match reflection over y-axis
P(4, 2) and R(4, -2) → same x, different y → ❌ reflection over x-axis
Q(-4, 2) and S(-4, -2) → same x, different y → ❌ x-axis reflection
R(4, -2) and S(-4, -2) → same y, opposite x → ✅ r...