A line segment has endpoints (0, 5) and (6, 5) . After the line segment is reflected across the x -axis, how long will it be?
A. 11 units
B. 6 units
C. 1 unit
D. 5 units
B. 6 units
When a line segment is reflected across the x-axis, the y-coordinates of the endpoints are multiplied by -1.
So, the new endpoints after reflection will be (0, -5) and (6, -5).
To find the length of the reflected line segment, we subtract the x-coordinates of the endpoints:
6 - 0 = 6
Therefore, the length of the reflected line segment will be 6 units.