A line contains the points (6,-3) and I(3,1) when the line is reflected across the Y axis. What are the two new points?
When a point is reflected across the y-axis, its x-coordinate changes sign while the y-coordinate remains the same.
For the point (6, -3), reflecting it across the y-axis would give us (-6, -3).
Similarly, for the point (3, 1), reflecting it across the y-axis would give us (-3, 1).
So, the two new points after reflecting across the y-axis are (-6, -3) and (-3, 1).