Explanation:
The line segment is initially 5 units long, with endpoints (0, 5) and (6, 5).
When it is reflected across the x-axis, the new endpoints will be (-6, 5) and (0, -5).
The length of the reflected line segment will be the absolute value of the difference between these two endpoints, which is 6 units.
Therefore, the line segment will be 6 units long after it is reflected across the x-axis. This is because a reflection across the x-axis changes the sign of the x-coordinates, but not the y-coordinates. Since the y