Question

HELP TIMED!

Piece Wise functions

Answer 1

Last Option: (-∞, 4) U (4, ∞)

Explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see that our x-values span all numbers except x = -4. Therefore, it is not included in our domain:

(-∞, 4) U (4, ∞)