Answer:
-3x^2+2
Step-by-step explanation:
(5x - 3x^2) - (5x -2)
Distribute the minus signs
(5x - 3x^2) - 5x +2
Combine like terms
-3x^2 +5x-5x+2
-3x^2+2
Answer:
B. 3
Step-by-step explanation:
The constant of proportionality is 3 because every week, the tree grows 3 more inches at a constant rate. The increase amount doesn't change. It's constantly growing by 3 inches.
I hope this helps!