Answer:
The shortest piece is 42
Step-by-step explanation:
168 ÷ 4 = 42 ( Shortest Piece )
42 × 3 = 126 ( Longest Piece )
168 - 126 = 42
D = (13, - 23 )
Given the translation rule
(x, y ) → (x - 4, y + 15 )
To go in the reverse direction, that is image to original, then, reverse the operations in the translation rule.
(x , y ) → (x + 4, y - 15 ) , thus
D'(9, - 8 ) → D(9 + 4, - 8 - 15 ) → D(13, - 23 )
