Answer question in the picture below

Answer:
The first one!
Explanation:
The function is the one where each x value has only one y value. You can fact-check my answer, but I assure you this is correct!
Answer:
The first one is correct Or this one. The main reason its correct is because in order for a function to be a function an input must have only one output. So 7 can be 1 but 7 cant be 2 if that makes sense.
Explanation:
Hope this helped.
A brainliest is always appreciated.