What is the domain of f(x)=-x-1,x<0 ?

The domain of f(x)=-x-1,x<0 is x<0

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domain of f(x)=-x-1,x<0

domain

f (x) = - x - 1, x < 0

x < 0

Interval Notation

(- \infty, 0)

Solution steps

Set the domain to the given interval

x < 0

The function has no undefined points nor domain constraints. Therefore, the domain is

x < 0

x^{2} + 2 x + 1

f (x) = - 2 x + 1 - 3

\frac{3 x ^{5} - 20 x ^{3}}{32}

\frac{x}{( x ^{2} + 4 ) ^{\frac{3}{2}}}

\frac{x ^{2} + 1 + x}{x ^{2} + 1 + 2 x}