Answer:
-2, 6
Step-by-step explanation:
To find the reflection of a point across the y-axis, you need to change the sign of the x-coordinate while keeping the y-coordinate the same.
Given point k at (2, 6), the reflection across the y-axis will be at (-2, 6).
Therefore, the ordered pair that represents the reflection of point k(2, 6) across the y-axis is (-2, 6).