Geometry

Question Analysis:
This question asks you to infer the transformation from coordinates of two congruent triangles.

Key Concept Explanation:
The rule for reflecting over y = −x: (x, y) → (−y, −x)

Step-by-Step Solution:
Take vertex (2, −1): → Swap & negate → (−(−1), −2) = (1, −2)
Take vertex (4, −3): → Swap & negate → (−(−3), −4) = (3, −4)
Take vertex (3, 0): → Swap & negate → (−0, −3) = (0, −3)
Matches rule for reflection over y = −x.

Option Analysis:
A. ✖ x-axis only flips y
B. ✖ Coordinates don’t rotate that way
C. ✅ Matches ru...