karelbarnett24 karelbarnett24

31-05-2019
Mathematics

contestada

Determine the domain of the function.
f(x)= square root of 2-x

a:x ≤ 2
b: All real numbers
c:x > 2
d: All real numbers except 2

Respuesta :

altavistard altavistard

31-05-2019

Answer:

[-∞, 2) so that 2 - x is either zero or positive

Step-by-step explanation:

First look at the function y = √x. Its domain is [0, ∞ ).

The domain of √(2 - x) is the set of all real numbers for which 2 - x is 0 or +, and that domain is [-∞, 2).

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