Question

Is the relation below a function?

-3
-1
-1
3
у
0
1
2
3

Answer 1

I would say no!

Explanation:

cause we cannot determine the rule of mapping so y is no an image of x

Answer 2

I believe it would be "y"

Explanation:

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).