Find the domain of:
f(x)=-sqrtx^2-16
The domain of a function is the set of all possible input values (x values) that the function can accept.
In this case, the function is f(x) = -√(x^2) - 16.
Inside the square root, x^2 must be greater than or equal to 0 in order to have a real-valued result. This means that the domain of this function is all real numbers where x^2 >= 0.
Since any real number squared is always greater than or equal to 0, the domain of this function is all real numbers.
Therefore, the domain of f(x) = -√(x^2) - 16 is (-∞, ∞).