Question

Identify the domain and the range of the given relation.
x
y
-12
8
-7
8
1
8
20
8
Domain: {-12, -7, 1, 20}; Range: {8, 8, 8, 8}
Domain: {8, 8, 8, 8}; Range: {-12, -7, 1, 20}
Domain: {-12, -7}; Range: {1, 20}
All of the choices.

Answer 1

The domain is {-12, -7, 1, 20} and the range is {8} (so the correct choice is the first one — the range listed there just repeats 8 several times, but as a set it's {8}).