The distance between the two points (-4, 2) and (4, 2) is 8 units.
When the line is reflected across the y-axis, the new points become (4, 2) and (-4, 2).
The distance between these two points is still 8 units.
Therefore, the length of the line after it is reflected across the y-axis remains 8 units.
A LINE containing the points (-4, 2) and (4, 2) is reflected across the y-axis. How long is the LINE after it is reflected?
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