Identify the mapping diagram that represents the relation and determine whether the relation is a function. {(-2,-5), (-1,-3), (-2,6),(5,7)}

The mapping diagram that represents the relation is:

-2 -1 -2 5
↓ ↓ ↓ ↓
-5 -3 6 7

This relation is not a function because the input value -2 is paired with two different output values (-5 and 6). In a function, each input value must be paired with exactly one output value.