Answer:
A) Reflection
B) (-2,-6)
Explanation:
Have a look at the attached picture:
The type of transformation that maps ∆ABC onto ∆A′B′C′ is a reflection across the x-axis. A reflection is an isometry, which means the original(pre-image) and image are congruent, that can be described as a "flip".
When ΔA'B'C' is reflected across the line x = -2 to form ΔA"B"C", the vertex of ΔA"B"C" will have the same coordinates as B' which is (-2,-6) ....