Algebra-2

Question Analysis
The question tests the understanding of the definition of a function in the context of a mapping diagram. A function requires that each input value (x-value) corresponds to exactly one output value (y-value). In this case, the input value 11 points to two different output values (33 and 44), 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 inputs and outputs: Inputs {11, 13, 15}, Outputs {33, 39, 44}
2. Check for duplicate input values: The input value 11 a...