What is the domain of f(x)=|x-1|+|x+1| ?

The domain of f(x)=|x-1|+|x+1| is -infinity <x<infinity

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domain of f(x)=|x-1|+|x+1|

domain

f (x) = ∣ x - 1 ∣ + ∣ x + 1 ∣

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

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

- \infty < x < \infty

- 4 - 2 x + 1 - 2

f (x) = \frac{3 x}{4 x - 7}

f (x) = x - 3 + 2 x

f (x) = \frac{3 x}{4 x - 9}

f (x) = - ∣ x - 3 ∣ - 2

What is the domain of f(x)=|x-1|+|x+1| ?
The domain of f(x)=|x-1|+|x+1| is -infinity <x<infinity