Algebra-1

The square root function is only defined for non-negative values of x in the real number system. For any x<0, the square root would be imaginary (involving complex numbers).

For A, it is defined for negative values of x in the real number system: This is false because the square root of a negative number is not defined in the real number system; it results in an imaginary number.
For B, it is a decreasing function for all x: This is false because the square root function is increasing, not decreasing. As x increases,

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