what function? If correct ill give u the rest of 200 points please help

Answer:
A function is an equation that has only one answer for y for every x. A function assigns exactly one output to each input of a specified type. It is common to name a function either f(x) or g(x) instead of y. f(2) means that we should find the value of our function when x equals 2.Step-by-step
Answer:
[tex]the \: second \: answer \: is \: correct \\ because \: at \: - 3 \: and + 7you \: have \: infintive[/tex]