Question

Which of the sets of ordered pairs represents a function?

A = {(–4, 5), (1, –1), (2, –2), (2, 3)}

B = {(2, 2), (3, –2), (9, 3), (9, –3)}

Answer 1

neither

Answer 2

A function has only one domain and one range (one input for every output)

Answer 3

option c

Answer 4

{(–4, 5), (1, –1), (2, –2), (2, 3)}

we have two x-values of 2 therefore this doesn't work

B = {(2, 2), (3, –2), (9, 3), (9, –3)}
we have two x-values of 9 therefore this doesn't work