Question

Is the relation a function? Why or why not?

{(3, -1), (3, 0), (-3, 4), (3, 8)}
No; three range values exist for domain value 3.
No; the relation passes the vertical line test.
Yes; only one range value exists for each domain value.
Yes; three range values exist for domain value 3.

Answer 1

No; three range values exist for domain value 3.

Explanation:

To be a function, every input should have a unique output