Question

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

A function is where all the outputs are different. If outputs are the same, it is not a function.

Answer 2

So what would your answer be? @~cuddle_monster~

Answer 3

D