Determine whether the relation is a function 5 4 2 9 4 5 5 2

Determine whether the relation is a function. {(-5. 4), (-2, 9), {4, 5), {5, 2)} Not a function Function

Solution

if each element in the domain is matched with exactly one element in the range. If so, you have a function!,

here also each element in domain matches with exactly one elemnet in range, no repetitions, so ye the relation is a function