How can you determine the x value whether it is in the domain of h

Question

asked Nov 14, 2021 210k views

1 Answer

Qin Heyang · Answer 1 · 2021-11-18T20:20:30+0000

Answer:

Well, because this is a khan academy question i guess ill be safe to answer it.

0 is in the domain

4 is in the domain

5 is NOT in the domain.

Explanation:

If you plug in 5, you are left with

(4)/(5 - 5) =
(4)/(0) = undefined

However, if you plug in any other value in that list, you are left with a number.

Remember, it isn't in the domain if the number is imaginary (like square root of a negative number) or the answer results in an undefined :)