Question

Which is the range of the function f(x)=1/7(9)x

Answer 1

(-infinity,infinity)
or
y∈R

Answer 2

Explanation:

The minimum value that an exponential can approach is 0 . so when we are trying to find the range of an exponential then we just need to write all the possible values that is attained or approached by f(x) .

Range of this exponetial is (0,∞ )