Answer:
When comes to initial value, x is equals to 0.
So x = 0 is substitute into the function.
In Indices Law, any values to the power of 0 will be 1.
So the initial value of function will be :
[tex]f(x) = a( {b}^{x} )[/tex]
[tex]f(0) = a \times {b}^{0} [/tex]
[tex]f(0) = a \times 1[/tex]
[tex]f(0) = a[/tex]