Identify the mapping diagram that represents the relation and determine whether the relation is a function.
{(-7, -5), (-4, 3), (-7, 2), (8, 4)}
The mapping diagram that represents the relation is:
-7 -> {-5, 2}
-4 -> {3}
8 -> {4}
This relation is not a function because the input value -7 is associated with two different output values (-5 and 2).