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goblinko [34]
3 years ago
5

If f(x)=square root 4x+9+2, which inequality can be used to find the domain of f(x)?

Mathematics
2 answers:
jenyasd209 [6]3 years ago
8 0

we have

f(x)=\sqrt{4x+9} +2

we know that

The radicand must be greater than or equal to zero

so

4x+9 \geq0 \\ 4x\geq -9 \\x\geq -\frac{9}{4} \\ x\geq -2.25

the domain is is the interval--------> [-2.25,∞)

therefore

<u>the answer is</u>

4x+9 \geq0


elixir [45]3 years ago
7 0
4x + 9 ≥ 0
There is your answer
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