Algebra-1

Question Analysis
This question tests the student's understanding of the Vertical Line Test, which is a method to determine if a graph represents a function. The key concept is that if a vertical line intersects the graph at more than one point, the relationship is not a function.

Key Concept Explanation
The Vertical Line Test is a visual way to determine if a graph represents a function. A function has a unique output for each input, so a vertical line should intersect the graph at exactly one point.

Step-by-step Solution
1. Examine the graph and draw a vertical line at various points.
2. Observe the number o...