To describe the sequence of transformations that takes $ABCD$ to $A'B'C'D'$, let's analyze the two shapes.

• $ABCD$ is located on the left-hand side of the $y$-axis, while $A'B'C'D'$ is located on the right-hand side.
• The shapes are reflected versions of each other, suggesting either a reflection or a rotation, followed by translation.

Steps:

1. Reflection over the $y$-axis: This would place $ABCD$ on the right side of the graph where $A'B'C'D'$ is located.
2. Translation down: Once reflected, the shape needs to move down by 1 unit to align perfectly with $A'B'C'D'$.

Thus, the correct sequence is:

• B: Reflect $ABCD$ over the $y$-axis, then translate down 1.

Do you want any further clarification on this?

Related Questions:

1. What happens if you reflect a shape over the $x$-axis instead of the $y$-axis?
2. How can you identify if a transformation includes rotation instead of reflection?
3. How would you describe a 180-degree rotation transformation around a point?
4. What would happen if you translated a shape up instead of down?
5. How can you distinguish between clockwise and counterclockwise rotations?

Tip:

Always check the orientation of the shape before and after transformation to identify whether a reflection or rotation occurred.