Answer:
(-9, 3)
Step-by-step explanation:
To rotate a point 270°:
R₂₇₀ (x, y) = (y, -x)
So the answer would be (-9, 3).
Answer: 6x+3y
3x+3(x+y)= 3x+3x+3y=6x+3y
B, D, and E.
Inequalities are recognized from >, <, ≤, and ≥ signs.