(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

Answer

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Answer

3. Identify the correct transformation: Reflection across the \( Y \)-axis

Steps

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