A line containing the points -2,3 is reflected across the x-axis How long is the reflected line?
The distance between (-2,3) and its reflection across the x-axis will be equal to the distance between (-2,-3) and the x-axis.
Since (-2,-3) lies on the x-axis, the distance between (-2,-3) and the x-axis is zero.
Therefore, the length of the reflected line is 0 units.