Okay 2
Really
4
During
32
Square
67
Hello!
A number line usually doesn't say, 
,3.1567....., 3.8. Usually number lines do not use fractions either. They usually just may say, -1,0,1,2,3,4.. which are all integers.
Therefore, our answer is B) integers.
I hope this helps!
Answer:
D) all real numbers
Step-by-step explanation:
The domain is the input values, in this case the x values
What x values can we use
x goes from - infinity to plus infinity, so it is all real numbers
