Algebra-2

Question Analysis
This question tests the ability to determine the range of a relation from a mapping diagram. The student needs to identify the set of all output values (y-values) from the given mapping diagram.

Key Concept Explanation
The range of a relation is the set of all output values (y-coordinates) in the mapping diagram. In this case, the y-values are 20, 40, 60, and 80.

Step-by-step Solution
1. Identify the y-values fro...