Question

The relation {(2,11), (-9, 8), (14, 1), (5, 5)} is NOT a function when which ordered pair is added to the set?

a.
(8, -9)
c.
(0, 0)
b.
(6, 11)
d.
(2, 18)

Answer 1

any pair which results in an element having more than one image. So, (d)