Algebra-2

Question Analysis
The question tests the understanding of the definition of a function. A function requires that each input value (x-value) corresponds to exactly one output value (y-value). In this case, the x-value 25 corresponds to two different y-values (30 and 40), which violates the definition of a function.

Key Concept Explanation
A function is a special type of relation where each element in the domain (input values) corresponds to exactly one element in the range (output values). This means that for any given x-value, there should be only one corresponding y-value.

Step-by-step Solution
1. List the ordered pairs: {(25, 32), (30, 34), (25, 36)}
2. Check for duplicate x-values: The x-value 25 appears twice.