The line containing the points (-2, 3) and (2, 3) is a horizontal line located at \(y = 3\). When this line is reflected across the x-axis, every point (x, y) on the line gets reflected to (x, -y).
So, the points after reflection will be (-2, -3) and (2, -3). The reflected line will still be horizontal and will now be located at \(y = -3\).
The length of the line segment between the reflected points (-2, -3) and (2, -3) can be calculated as follows:
- Find the distance between the two x-coordinates: \[ 2 - (-2) = 2 + 2 = 4 \text{ units} \]
Therefore, the length of the reflected line is 4 units.
The correct response is: 4 units.