Question

Which graph does NOT represent y as a function of x?

Answer 1

Answer:

The first one ( vertical line )

Step-by-step explanation:

The graph is not a function because it doesn't pass the vertical line test.

The vertical line test is a test which uses a vertical line to make sure the graph does not have any mutual y values for distinct x values.

Also, the equation for the line is x=3 which doesn't represent y as a function of x.