A line containing the points ( -2,3) and (2,3) is reflecting across the x-axis. how long is the reflected line? (1 point)
not enough information
3 unit
infinitely long
4 units
When a line is reflected across the x-axis, the y-coordinate of each point on the line is negated while the x-coordinate remains the same.
Given the two points (-2,3) and (2,3), we can see that the line is horizontal and has a length of 4 units (2 - (-2) = 4).
When reflected across the x-axis, the y-coordinate of each point becomes -3. Thus, the reflected line would now be (-2,-3) and (2,-3), which still has a length of 4 units (2 - (-2) = 4).
Therefore, the length of the reflected line is 4 units.