Right now, the coordinate is in quadrant III.
It doesn't matter which one (axis) you reflect off of first.
If you do x first, it would go to quadrant II, (over the x-axis) and then to I (over the y-axis)
If you do y first, then it would go to IV then to l.
So, (-2,-8) will land on the first Quadrant.
I hope this helps!
~kaikers