Algebra-1

Question Analysis
This question tests the understanding of the definition of a function by examining a linear equation. The key concept is that a function must have a unique output for each input.

Key Concept Explanation
The equation is a linear function. For any value of , there is exactly one corresponding value of . This satisfies the definition of a function, where each input has a unique output.

Step-by-step Solution
1. Identify the given relationship:

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