Apply geometric motions to reflect figures. Brinda reflects point T over a line of reflection, resulting in point T′. If points T and T′ have the same x-coordinate, what must be true?

3 answers

If points T and T′ have the same x-coordinate, it means that the line of reflection is vertical and passes through the y-axis. This is because the x-coordinate remains the same after reflection, implying that the line of reflection is perpendicular to the x-axis.
options are

The line of reflection is the x-axis.
The line of reflection is the x -axis.

The line of reflection is the y-axis.
The line of reflection is the y -axis.

The line of reflection is vertical.
The line of reflection is vertical.

The line of reflection is horizontal.
The line of reflection is the y-axis.