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Transformations: Possible PreImages?

This problem is a digital analogue of this Open Middle problem submitted by Jon Henderson.
Given triangle ABC with vertices A = (-8,2), B = (-2,2), and C = (-2,8), create a triangle (shown on right) whose vertices lie in quadrant 1 so that you use a translation by vector, rotation about point, and reflection about line in any order, to map that triangle onto triangle ABC, thus showing congruence.

When rotating around a point, use point O as the center of rotation. Note: O is moveable. Also note you will first need to move the vertices of the triangle shown on the right. ☺

Students: Move A, B, and C to locations your teacher indicates to you. Then complete the same activity (you did above) down here.