Answer:
x
≥
3
or
in interval notation
[
3
,
∞
)
Step-by-step explanation:
Given:
F
(
x
)
=
√
x
−
3
A function starts out having a domain of all Reals
(
−
∞
,
∞
)
A square root limits the function because you can't have negative numbers under the square root (they are called imaginary numbers).
This means
x
−
3
≥
0
Simplifying:
x
≥
3
hope it helps
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