Apply geometric motions to reflect figures. Brinda reflects point Tover a line of reflection, resulting in point T'. If points T and T'

have the same x-coordinate, what must be true? (1 point)

A. The line of reflection is vertical.
B. The line of reflection is the x-axis.
C. The line of reflection is horizontal.
D. The line of reflection is the y-axis.

1 answer

If points T and T' have the same x-coordinate after reflecting point T over a line of reflection, it means that the line of reflection must be vertical. This is because in a vertical reflection, the x-coordinates of points on either side of the line remain the same, while their y-coordinates change.

Therefore, the correct answer is:

A. The line of reflection is vertical.