Find the Domain and Range f(x) = square root of x^2-9


Step 1
Set the radicand in greater than or equal to to find where the expression is defined.

Step 2
Since the left side has an even power, it is always positive for all real numbers.
All real numbers

Step 3
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
Interval Notation:
Set-Builder Notation:

Step 4
The range is the set of all valid values. Use the graph to find the range.
No solution

Step 5
Determine the domain and range.
No solution

Step 6


Related Questions