The coordinates of the vertices of △abc are a(3, 1) , b(6, 4) , and c(6, 1) . the coordinates of the vertices of △a′b′c′ are a′(−1, −3) , b′(−4, −6) , and c′(−1, −6) . drag and drop the answers into the boxes to correctly complete the statement. a sequence of transformations that maps △abc to △a′b′c′ is a followed by a .