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What is the Domain of the function y=square root x+4

A)-infinity < x < infinity
B)-4 greater than or equal too x < infinity
C) 0 greater than or equal too x< infinity
D) 4 greater than or equal too x< infinity

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1 Answer

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Since there is no real square root of a negative value:

x+4≥0

x≥-4, in interval notation:

x=[-4, +oo)

In words, x is greater than or equal to negative 4.
User Xirururu
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