A sequence of transformations maps ∆ABC onto ∆A″B″C″. The type of transformation that maps ∆ABC onto ∆A′B′C′ is a _______.
When ∆A′B′C′ is reflected across the line x = -2 to form ∆A″B″C″, vertex ____
of ∆A″B″C″ will have the same coordinates as B′.
(Fill in the blanks)
