NO, since both images are not mirror images of each other, hence figure V is NOT a reflection of U across the y-axis
Examine the coordinates of a figure's points to see if it is reflected over the y-axis. The x-coordinates are negated in a reflection across the y-axis, while the y-coordinates stay unaltered.
Use this rule to all of the figure's points. The entire figure is mirrored over the y-axis if the coordinates match this pattern of reflection. Furthermore, look for symmetry in the graphic; reflection is characterized by symmetry about the y-axis.
Since both images are not mirror images of each other, hence figure V is NOT a reflection of U across the y-axis