Question

find the domain and range of f(x) = 4/√8-x​

Answer 1

Step-by-step explanation:

Since the given function is a square root function so the only NON-NEGATIVE values are allowed in the Domain and the Range will also be having NON-NEGATIVE Real numbers only.

For Domain,

D

f

:

8

−

x

≥

0

⇒

x

−

8

≤

0

⇒

x

≤

8

and we can see that this function will acquire every positive value and Zero also (when

x

=

8

).

Thus the Range of function,

R

f

=

{

0

≤

y

<

∞

}