Question 75040
What is the natual domain for the function:
f(x)= √x^2-9
------------------
The x^2-9 must be greater than or equal to zero.
x^2-9>=0
x^2>=9
x<=-3 or x>=3
That is the domain of the function.
The "or" is an inclusive or.
===============
Cheers,
Stan H.