Question

Which value is in the domain of f(x)?

f(x) ={ 2x+5. -6 < x < 0
-2x + 3, 0 < x < 4

Answer 1

C) 4

Explanation:

The missing options are:

A) –7

B) –6

C) 4

D) 5

In the picture attached a better representation of the function is shown. There, we can see that in the first interval: -6 < x ≤ 0, -6 is not included, but 0 it is included. In the second interval: 0 < x ≤ 4, 0 is not included, but 4 it is included.

-7 is not included because is less than -6, and only x values greater than -6 are included.

5 is not included because is greater than 4, and only x values less than 4 are included.