Answer:
Step-by-step explanation:
by definition :It's exponential growth when the base of our exponential is bigger than 1, which means those numbers get bigger. It's exponential decay when the base of our exponential is in between 1 and 0 and those numbers get smaller.
example: exponential growth
y=2^x
exponential decay
y=(1/2)^x
1. C:arithmetic, 34, 39, 44
2. B: geometric, -64, 128, -256
3. C: geometric, 1, 1/3, 1/9