Question

State whether it represents a function?

Answer 1

Graph 1: Yes

Graph 2: No

Graph 3: No

Graph 4: Yes

Graph 5: No

Graph 6: Yes

Explanation:

Graphs 2, 3, and 5 all have y-coordinates that share the same x-coordinates, making them fail the vertical line test. This line tests whether a graph has multiple y-coordinates for each x-coordinate. If the graph fails the test, meaning there are multiple y-coordinates for one x-coordinate, the graph isn't a function.