Question

List the ordered pairs and determine whether or not this is a function

Ordered pairs : ?
Is this a function : ?

Answer 1

The ordered pairs are (1,-1) (1,-2) (2,-3) (2,-4).

This is not a function because in order to be a function, every x value needs to have one and only one y value. You can see here that the x values have two y values, so it is not a function.