To determine if the relation is a function, check if each input (first element in each pair) is associated with exactly one output (second element in each pair).

Given the relation $\{(6, -1), (8, 0), (5, 5), (1, 3), (4, 5), (3, 4)\}$:

• The inputs are $6, 8, 5, 1, 4, 3$.
• Each input is paired with a unique output.

Since each input corresponds to exactly one output, the relation is a function.

a) Is the relation a function?

Yes.

b) Domain and Range:

• Domain: $\{6, 8, 5, 1, 4, 3\}$
• Range: $\{-1, 0, 5, 3, 4\}$