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Marat540 [252]
3 years ago
13

What is the domain of the functionf(x)=sqrt 9x ? all real numbers all real numbers greater than but not equal to 0 all real numb

er less than or equal to 0 all real numbers greater than or equal to 0
Mathematics
2 answers:
Sophie [7]3 years ago
8 0

Answer:

Domain : [0, ∞) {x | x ≥ 0} (equal to 0 all real numbers greater than or equal to 0).

Step-by-step explanation:

The given function is f(x) = √9x = 3√x

For this function f(x) is defined only if x ≥ 0 because for x < 0 the function is not defined.

f(-x) = 3√(-x) which is not defined.

Therefore domain of this function is domain: [0, ∞) {x | x ≥ 0}

Blababa [14]3 years ago
3 0

Answer:

The domain is all real numbers greater than or equal to zero

Step-by-step explanation:

∵ f(x) = √9x

∴ The domain is all values of x ≥ 0

    because if x = number less than zero it will be negative

    There is no value in the real number for √-ve values

∴ The domain is all real numbers ≥ 0

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