HELP! THIS IS DUE TODAY, and i will mark brainlest!

Answer:
Your answer is the 4th answer.
Step-by-step explanation:
In order for something to be a function, each output can only have one input. Because the output 4 is listed twice, this is not a function.
Answer:
the third one
Step-by-step explanation:
it would have to y values for the one x value 3 so it would not pass the pencil line test