find the domain and range of y f x root a^2-x^2
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1
Answer:
10, 10, -5, 5]}
Simply draw out the function.
The standard root function is:
y
=
a
⋅
√
(
x
−
h
)
+
k
where
x
−
h
≥
0
In a square root function, the number inside the root sign CANNOT be
<
0
∴
x
−
2
≥
0
∴
x
≥
2
∴ Domain
∈
[
2
,
∞
)
As for range, there is no K value in the function we were given
∴ the range begins at 0 to infinity.
Range
∈
[
0
,
∞
)
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