Which statement is true about the function f of x is equal to square root of negative x ?

For the square root to be defined, the expression inside it must be at least 0. Thus −x ≥ 0, which means x ≤ 0, so the domain is all real numbers less than or equal to 0. The outputs are nonnegative, so the range is not all real numbers or all numbers less than or equal to 0.

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