First, we need to add the two points:

(-8,4) + (6,6) = (-8+6, 4+6) = (-2, 10)

Next, we will multiply this result by 2 2/9:

(-2 2 2/9, 10 2 2/9) = (-2 20/9, 10 20/9) = (-40/9, 200/9)

So, the final result is (-40/9, 200/9).