Decide whether the following relation defines a function. \[ \{(3,5),(1,5),(5,4)\} \] Is the set of ordered pairs a function? No Yes

Step 1 ：Decide whether the following relation defines a function: \(\{(3,5),(1,5),(5,4)\}\)

Step 2 ：Check if each x-value has a unique y-value in the given set of ordered pairs.

Step 3 ：ordered_pairs = \{(5, 4), (3, 5), (1, 5)\}

Step 4 ：x_values = [5, 3, 1]

Step 5 ：unique_x_values = \{1, 3, 5\}

Step 6 ：Since the number of x_values is equal to the number of unique_x_values, the relation defines a function.

Step 7 ：Final Answer: \(\boxed{\text{Yes}}\)