Algebra-2

Question Analysis
The question tests the student's ability to determine whether a given set of ordered pairs represents a function. The key is to check if each x-value corresponds to exactly one y-value.

Key Concept Explanation
A function is a special type of relation where each element in the domain (x-values) corresponds to exactly one element in the range (y-values). If any x-value corresponds to more than one y-value, then the relation is not a function.

Step-by-step Solution
1. List the x-values: 1, 1, 2
2. Check if each x-value corresponds to exactly one y-value: