SOLUTION: How would you state the domain of f(x)=√(3x-9)?

Question 1144722: How would you state the domain of f(x)=√(3x-9)?
Answer by math_helper(2461) (Show Source): You can put this solution on YOUR website!

The root must have a nonnegative argument (i.e. 3x-9 must be >= 0)

So the domain is all x values that are 3 or greater

More formally, showing steps:
Square root operates on nonnegative arguments... (we assume working with Reals only). This leads to:

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