Triangle abc has vertices a(−3, 1), b(−3, 4), and c(−7, 1).
part a: if ∆abc is translated according to the rule (x, y) → (x 4, y − 3) to form ∆a'b'c', how is the translation described with words?
part b: where are the vertices of ∆a'b'c' located? show your work or explain your steps.
part c: triangle a'b'c' is rotated 90° counterclockwise about the origin to form ∆a"b"c". is ∆abc congruent to ∆a"b"c"? give details to support your answer.