Question

Which is the range of the function f(x) =1/7(9)x? all real numbers all real numbers less than 0 all real numbers greater than 0 all real numbers less than or equal to 0

Answer 1

I cannot suggest anything other than the set of real numbers here, but maybe someone else can provide a better answer. As long as you increase or decrease x (which is a real number) then you will get a real number, or the infinite set of real numbers. 

Answer 2

All real numbers greater than 0

Explanation:

The given function is

`f(x)=(1)/(7)(9)^(x)`

Notice that the function is exponential, which means its variable is an exponent.

It's important to notice that a power cannot be negative or zero, just positive.

Having said that, all possible results of this exponential expression are elements of the range set.

Therefore, the range must be all real numbers greater than zero.