Answer:
Domain: [2, ∞)
Step-by-step explanation:
Domain is the set of x-values that can be inputted into function f(x).
We see that we cannot take the 4th root of a negative number, so under the square root, the entire thing can't be negative. This means that the x-value cannot be lower than 2, but can be 2 itself:
[2, ∞)
