To correct a reflection over the y-axis, you need to ensure that each point on the original figure is mirrored properly. If the reflected figure appears to be incorrect, it may be shifted to the left or right incorrectly.
If the reflection is visually off and you notice it appears too far to the left, then you would need to shift it to the right. Conversely, if it looks too far to the right, you would need to shift it to the left.
Without seeing the specific figure, I cannot definitively state which direction to shift it. Generally, if you see that the reflection is misaligned against the y-axis, you would select either "Shift the reflected figure 1 unit to the right" or "Shift the reflected figure 1 unit to the left" based on its actual position relative to where it should be after the reflection.
Please evaluate the positioning of the reflected figure in relation to the original figure to decide on the correct shift. If it appears too far left, choose "Shift the reflected figure 1 unit to the right." If it appears too far right, choose "Shift the reflected figure 1 unit to the left."