Algebra-1

Question Analysis
This question tests the student's ability to apply the Vertical Line Test to a specific vertical line and determine if the graph represents a function.

Key Concept Explanation
The Vertical Line Test states that if every vertical line intersects the graph at most once, then the graph represents a function. In this case, the vertical line at intersects the graph at only one point, indicating that the graph is a function.

Step-by-step Solution
1. Identify the graph to be tested.
2. Draw a vertical line at

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