Question

Help me please and thank you (:

Answer 1

Answer:

A

Step-by-step explanation:

the rest of the tables have two of the same numbers and it is not a function if it does that.

Answer 2

The answer is B!

In a function, the x input cannot be repeated.

In A, you see that 4 has an arrow pointing to 2 y inputs. That means that 4 is repeated and cannot be a function.

In C, 2 and 5 are both repeated x inputs, so they cannot be functions either.

In D, 0 and -1 both have arrows pointing to 2 y inputs. As stated before, if an arrow points to more than one number, it cannot be a function.

In B, all the arrows point to only ONE y input and none of the x inputs are repeated. Thus, the correct answer is B!