To reflect the point Q(0, 10) over the y-axis, we change the sign of the x-coordinate while keeping the y-coordinate the same.
Since the x-coordinate of Q is 0, reflecting it over the y-axis will still yield an x-coordinate of 0. Therefore, the coordinates of the reflected point Q′ will be:
Q′(0, 10)
Thus, the correct response is:
The coordinates of Q′ are (0, 10) after a reflection over the y-axis.