Problem
(1) Which transformation most likely maps figure \( C D E \) onto figure \( C^{\prime} D^{\prime} E^{\prime} \) ? (A) Rotation \( 180^{\circ} \) about the origin (B) Reflection across the \( Y \)-axis (C) Reflection across the \( X \)-axis (D) Translation right 3 units (c) 2019 The Math Café
Solution
Step 1 ：1. Compare coordinates of figure \( C D E \) and figure \( C^{\prime} D^{\prime} E^{\prime} \)
Step 2 ：2. Check if coordinates are transformed by rotation, reflection or translation
Step 3 ：3. Identify the correct transformation: Reflection across the \( Y \)-axis
