Geometry

Question Analysis:
This examines understanding of reflecting points that lie exactly on the y-axis.

Key Concept Explanation:
Points on the y-axis (x=0) remain unchanged after y-axis reflection because:
-0 = 0

Step-by-Step Solution:
Original point: (0, 5)
Apply reflecti New x: -0 = 0
New y: 5
Reflected point: (0, 5)

Option Analysis:
A) Incorrect - swapped coordinates
B) Incorrect - changed y-coordinate
C) Correct - point remains unchanged
D) Incorrect - created invalid coordinates

Common Mistakes:
Assuming all points must change