An exponential function is of the form f(x)=a
where a ≠0, b > 0 , b ≠1, and x is any real number.
when b > 1, the graph increases.
when 0 < b < 1, the graph decreases.
a = initial value,r = growth or decay rate
x = number of time.
The given Exponential function is

Among the options given the ones which are true for the given function are:
The growth value of the function is 1/3
The function shows exponential decay
The function is a stretch of the function f(x) =