Wat is het domein
van de functie
f : x → f (x) = √2 − |x + 2|
A.  [ − 4, 0 ]
B.  [ − 2, 0 ]
C.  [ 0, 4 ]
D.  rmin
E.  rplus
A    B    C    D    E 

[ 5-2963 - op net sinds 29.7.2020-(E)-24.10.2023 ]

Translation in   E N G L I S H

What is the domain
of the function

f : x → f (x) = √2 − |x + 2|
A.   − 4 ≤ x ≤ 0
B.   − 2 ≤ x ≤ 0
C.   0 ≤ x ≤ 4
D.   x ≤ 0
E.   x ≥ 0

Oplossing - Solution

  2 − |x + 2| ≥ 0
⇔ |x + 2| ≤ 2
⇔ − 2 ≤ x + 2 ≤ 2
⇔ − 4 ≤ x ≤ 0
gricha