1. The problem asks whether the given relation is a function. 2. A relation is a function if every input $x$ corresponds to exactly one output $y$. 3. The given relation has the ordered pairs: $(-19, 18)$, $(-9, 0)$, and $(3, 10)$. 4. Check if any $x$-value repeats with different $y$-values. 5. Here, the $x$-values are $-19$, $-9$, and $3$, all distinct. 6. Since each $x$ has exactly one $y$, the relation is a function. **Final answer:** Yes, the relation is a function.