Give the domain and range.
a. domain: {2, 0, 2), range: {1, 1,3}
b. domain: {-1, 1, 3), range: 1-2, 0, 2}
c. domain: {-2, 0, 2), range:{-1, 1, 3}
d. domain: {1, 1, 3), range: {2, 0, 2}
