Answer:
b = 4/3
Explanation:
In an exponential equation:
f(x) = a (b)ˣ
Evaluated at x+1:
f(x+1) = a (b)ˣ⁺¹
The ratio between them is:
f(x+1) / f(x)
= (a (b)ˣ⁺¹) / (a (b)ˣ)
= b
So the decay factor b can be found by dividing the consecutive y values.
b = 16 / 12
b = 4/3