Here is a relation. {(–4, 7), (–2, –1), (–2, 0), (3, 3)} display the relation in an arrow diagram. is the relation a function? explain.

Diagram is attached.  No, the relation is not a function.

In order for a relation to be a function, each input value must be mapped to no more than 1 output value.  One of our input values, -2, is mapped to 2 output values (-1 and 0).  Therefore this is not a function.