Question

What is the domain of this function?

1
2
2
4
3
9
4
16
A. {1, 2, 3, 4, 9, 16)
B. {1,2,3,4}
C. {2, 4, 9, 16}
D. {1, 2}​

Answer 1

The domain is the input values, which would be the numbers that have the arrows pointing away from them.

This would be the 4 numbers in the oval on the left side.

The answer is B. {1,2,3,4}