What is the range of the function f(x) = |x| – 3? f(x) ∈ ℝ f(x) < –3 f(x) ≤ –3 f(x) > –3

Question

What is the range of the function f(x) = |x| – 3?

f(x) ∈ ℝ
f(x) < –3
f(x) ∈ ℝ
f(x) ∈ ℝ

Answer 1

f(x) ≥ –3

Explanation:

f(x)=|x|-3

|x| have range x≥0 .

f(x)≥0-3

f(x)≥-3

First answer f(x) ∈ ℝ