Question

A relation is a function if _____.

A.there is more than one input for each output
B.there is exactly one output for each input
C.there is more than one output for each input
D. there is exactly one input for each output

Answer 1

the answer is d. there is exactly one input for each output

Answer 2

I believe the answer to your question is D. there is exactly one input for each output.