help me figure out the rate of change & the equation for this table

Answer:
y = 54 (⅓)ˣ
Step-by-step explanation:
Assuming this is an exponential function:
y = a (b)ˣ
Plug in both points:
54 = a (b)⁰
2 = a (b)³
First equation simplifies to a = 54.
Solving the second equation:
2 = 54 b³
1/27 = b³
b = 1/3
y = 54 (⅓)ˣ