Question

Is the following relation a function?

Two circles are shown, one labeled x and the other labeled y. The x circle contains the numbers 6, negative 1, 4, and 0. The y circle contains the numbers 2, negative 1, and 3. Arrows map numbers from x to numbers from y. There are arrows going from 6 to negative 1, from negative 1 to 2, from 4 to 3, and from 0 to 3.
Answer
Yes
No

Answer 1

its no

Explanation:

i took the test

Answer 2

Yes, because for each element of the set X there is only one correspondent element in the set Y.