What is the domain of f(x)=sqrt(18+6x) ?

The domain of f(x)=sqrt(18+6x) is x>=-3

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domain of f(x)=sqrt(18+6x)

domain

f (x) = 18 + 6 x

x \geq - 3

Interval Notation

[- 3, \infty)

Solution steps

Find non-negative values for radicals:

x \geq - 3

The function domain

x \geq - 3

y = x^{2} + 4

y = x^{2} - x - 2

f (x) = 2 x^{2} + 8 x - 3

f (x) = (x + \frac{1}{x}) + \frac{1}{( x + \frac{1}{x} )}

g (x) = x + 4

What is the domain of f(x)=sqrt(18+6x) ?
The domain of f(x)=sqrt(18+6x) is x>=-3