What are the domain and range of the function f (x) = 4 (3/81) "?

{xl x is a real number}; {vl y >0}

x; vly >0}

{xl x is a real number}; {vl y > 4}

{x / x > 4}; {vy> 4}

we are given

Domain:

we know that domain is all possible values of x for which any function is defined

Here, since, x is only exponent

so, we can take any values of x

it will be defined for all values of x

so, domain is all real numbers

x

Range:

we know that

range is all possible values of f (x) or y

Since, there is no negative sign here

so, f (x) will always be positive and greater than 0

so, range is y>0