Question

Is this graph a function?
Why or why not?

Answer 1

Its function because it passes the vertical line test

Answer 2

Is a function because it passes the vertical line test.

Explanation:

Take your pencil, put it vertical on the graph, and move the pencil left and right vertically. We can see that the pencil intersects the given line only at one point at the time wherever you move it. If that is the case the graph is a function.