Answer:
set builder notation is {f(x) | f(x) ≥ –4}
Interval notation is [-4, ∞)
Step-by-step explanation:
Range is the set of all y values for which the function is defined
In general, for function f(x)= a^x +k the range of the function is f(x)>= k
Now we compare general form of the function with the given function and find out the range
the value of k = -4
so the range of the given function is f(x) >= -4
set builder notation is {f(x) | f(x) ≥ –4}
Interval notation is [-4, ∞)