Answer:
Reflection across the line y=x followed by translation 10 units to the right and 4 units up.
Step-by-step explanation:
Triangle ABC has vertices at points A(-6,2), B(-2,6) and C(-4,2).
1. The reflection across the line y=x has the rule
(x,y)→(y,x).
Thus,
2. The translation 10 units to the right and 4 units up has the rule
(x,y)→(x+10,y+4).
Thus,
Points A'B'C' are exactly the vertices of the triangle A'B'C'.