Question

Is (-2, 1) (-1, 3) (0, -2) (1, 3) ( -2, 1)a function?

Answer 1

Yes this is a function.

Step-by-step explanation:

Functions are those that DO NOT REPEAT x values, in this case, you will see that -2 repeats twice as an x value, but it is expressing the same point, so it will not be considered as going twice.

I can also say that if you are to graph this: