Answer:
Step-by-step explanation:
Given:
 {(7, 2), (5, -4), (3, 3), (-4, -4)}
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The domain is the set of first numbers:
 {7, 5, 3, -4} . . . domain
The range is the set of second numbers:
 {2, -4, 3} . . . range
No domain values are repeated, so this relation is a function.