Answer:
0 less-than-or-equal-to x less-than infinity
Step-by-step explanation:
The square root function, y=√x, is defined for non-negative numbers. Its domain is ...
0 ≤ x < ∞
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<em>Comment on the question</em>
This shows up again and again in domain problems, so is worth remembering. The value under the radical cannot be negative (but it can be zero).
