Answer:
Probably ((6,9) + (4,6)) - (2,3)
Step-by-step explanation:
2 ₓ₂ : 3 ₓ₃
4 ₓ₂ : 6ₓ₃
6 ₓ₂ : 9 ₓ₃
WIth a unit of 1.5y for every x we can find
(6,9) + (4,6) - (2,3)