1.A function is ________ a relation.
Select one:
a. always
b. sometimes
c. never


5.Find the range of f(x) = –x + 4 for the domain {–3, –2, –1, 1}
Select one:
a. {3, 2, 1, –1}
b. {7, 6, 5, 3}
c. {1, 2, 3, 5}
d. {–7, –6, –5, –3}