Geometry

Question Analysis:
Tests understanding of coordinate changes from a 180° rotation.
The main focus is applying the correct rotation rule.

Key Concept Explanation:
For a 180° rotation about the origin: (x, y) → (–x, –y)

Step-by-Step Solution:
Use the rule:
If (x, y) = (3, 4)
After 180° rotation → (–3, –4)
✅ Rule: (x, y) → (–x, –y)

Option Analysis:
A. ❌ It is the reflection over y = x.
B. ❌ It is the reflection over y = -x.
✅ C. Correct.