Question

|3. Which relation is a function?

a. {(5, 3), (2, 8), (-5, -1), (4, 7), (2, 1)}|
b. {(5, 3), (2, 8), (-5, -1), (4, 7), (5,7)}
c. {(-5, 3), (2, 8), (-5, -1), (4, 7), (2, 2)
d. {(5, 3), (2,8), (-5, --1), (4, 7), (-2, 1​

Answer 1

D

Explanation:

D has one y output for every x input.