Question

Which value of x is in the domain of f(x)=√x - 8?

OA. x = 0
OB. x=7
OC. x = -8
OD. x = 10
SUBMIT

Answer 1

Answer: OC. x = -8 is not in the domain of the function f(x) = √x - 8 because the square root of a negative number is not a real number. Therefore, the only value of x that is in the domain of the function is x ≥ 0.

Explanation: