ΔABC will undergo two transformations to give ΔA′B′C′. Which pair of transformations will give a different image of ΔABC if the order of the transformations is reversed? 1. a rotation 90° counterclockwise about the origin followed by a reflection across the y-axis
2. a translation 5 units down followed by a translation 4 units to the right
3. a reflection across the x-axis followed by a reflection across the y-axis
4. a rotation 180° clockwise about the origin followed by a reflection across the y-axis