a line contains the points (6,-3) and (3,1). When this line is reflected across the y-axis, what are the 2 new points?

Answer 1

When a line is reflected across the y-axis, the x-coordinates of the points are negated while the y-coordinates remain the same.

The x-coordinate of the point (6, -3) becomes -6, and the y-coordinate remains -3. Therefore, the new point is (-6, -3).

Similarly, the x-coordinate of the point (3, 1) becomes -3, and the y-coordinate remains 1. Therefore, the new point is (-3, 1).

So, the two new points after the reflection across the y-axis are (-6, -3) and (-3, 1).