what is the domain of the function below?
f(x)= -x^2 + 11
thank you
choices are:
1. (- infinity, 11)
2. (-infinity, infinity)
3.(-11, 11)
4. (11, infinity)
The domain of a function is the possible x values that may be used in the expression.
Since I could substitute any value of x that I want, which of the given choices describes that option ?