Algebra-2

Question Analysis
The question tests the student's ability to identify whether a given mapping diagram represents a function. The key is to check if each input value (domain) points to only one output value (range).

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).

Step-by-step Solution
1. List the inputs: 7, 9, 11
2. Check if each input points to only one o...