Which transformation of figure a results in figure a'? a reflection across the y-axis a reflection across the x-axis a clockwise rotation of 90° about the origin a translation 12 units right and 2 units down.

From the figure the coordinates of A are: 
(-8,-4), (-6,-3), (-4,-5)
The coordinates of A' are: (-4,-6),(6,-5),(8,-7)
subtracting 2 corresponding points we get:
[(4--8),(-6--4)]
=(12,-2)
this means that the image has been translated 12 units to the right and 2 units down.

a translation 12 units right and 2 units down.