1. The problem asks whether the given relation \{(-3, 14), (20, 2), (20, 9)\} is a function. 2. A relation is a function if every input (x-value) corresponds to exactly one output (y-value). 3. Here, the input 20 corresponds to two different outputs: 2 and 9. 4. Since one input has multiple outputs, this relation is not a function. **Final answer:** No, this relation is not a function.