When a point \((x, y)\) is reflected across the y-axis, the x-coordinate changes sign, while the y-coordinate remains the same.
For the points given:
-
Reflecting \((6, -3)\) across the y-axis:
- New point: \((-6, -3)\)
-
Reflecting \((3, 1)\) across the y-axis:
- New point: \((-3, 1)\)
Therefore, the two new points after reflecting across the y-axis are \((-6, -3)\) and \((-3, 1)\).
The correct response is: \((-6, -3)\) and \((-3, 1)\).