Geometry

Question Analysis:
Simple question to test understanding of which coordinate remains unchanged.
Focus: Isolate effect on x.

Key Concept Explanation:
Reflection over x-axis does not affect x-coordinate.

Step-by-Step Solution:
Using (x, y) → (x, −y), x does not change.

Option Analysis:
A – No, unless x was already 0.
B – Only if x was positive and reflected over y-axis (not here).
C – Correct.
D...