Question

Which of the following is the domain of the function below?



f(x) = - 2−x−−−−−√ +1 (1 point)
Responses

{x: x < 2} {x: x < 2}

{x: x≤ 2} {x: x≤ 2}

{x: x >2} {x: x >2}

{x: x ≥ 2 } {x: x ≥ 2 }

Answer 1

We require the expression under the square root to be nonnegative: 2 − x ≥ 0 ⇒ x ≤ 2.

Domain: {x : x ≤ 2}