\(\displaystyle{y}={0.15}{\left(\frac{{3}}{{2}}\right)}^{{x}}\)

The function represents exponential growth because here a = 0.15 which is larger than 0 and b = 1.5 which is larger than 1. So, growth factor b = 1.5

The function represents exponential growth because here a = 0.15 which is larger than 0 and b = 1.5 which is larger than 1. So, growth factor b = 1.5