Answer:
The first graph doesn't represent a function.
Step-by-step explanation:
When we need to deduct from a graph if it's a function or relation, we use the vertical line proof.
The vertical line proof consists in drawing a vertical line on the function.
- If the line intersect two points of the graph, then, the graph belongs to a relation.
- If the line intersect only one point of the graph, then, the graph belongs to a function.
Therefore, the first graph is not a function, because if we draw a vertical line, it will intersect two points of the graph.
