If b is a positive number, and a is any real number, then an exponential function is
[tex]\begin{gathered} f(x)=ab^x \\ \text{where} \\ a\text{ is the coefficient} \\ b\text{ is the base} \\ x\text{ is the exponent} \end{gathered}[/tex]
In the given function f(x), we have the following
[tex]\begin{gathered} f(x)=3(0.25)^x \\ 3\text{ is the coefficient} \\ 0.25\text{ is the base} \end{gathered}[/tex]
Therefore, in the given function f(x), the coefficient of the exponential function is 3. The base is 0.25.
