Answer:
R = (0, +∞)
Step-by-step explanation:
The exponential parent function with base 2 is defined by the function

The range is the set of all the values that the function f can have.
With the given function it is impossible to obtain negative results, that is, any number that has the variable x, whether positive or negative, results in the function f a number greater than zero.
So as x decreases towards -∞, the value of f becomes smaller with a tendency to zero (excluding zero).
--> 0
But as x increases towards +∞, the function f becomes larger with a tendency to +∞.
--> +∞
In conclusion, the range of the exponential parent function with base 2 is
R = (0, +∞)
Hope this hepls!