Question

What is the domain and range to y=|x+4|

Answer 1

• x ∈ (- ∞, + ∞) and y ∈ [0, + ∞)

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Given is the absolute value function.

It has no domain restriction but the range is not negative.

It can be shown as:

• Domain: x ∈ (- ∞, + ∞)

• Range: y ∈ [0, + ∞)