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? (3 points) part b: where are the vertices of ∆a'b'c' located? show your work or explain your steps. (4 points) 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. (3 points)