Part D
Whose tiles cover more area per tile? Use complete sentences to explain your reasoning.

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

the one below it is a function

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x