Question

Which of these is NOT a function ?

Answer 1

Answer:

A

Step-by-step explanation:

it fails the vertical line test

Answer 2

Answer: A

Step-by-step explanation: The easiest way to determine

if a relation is a function is to use the vertical line test.

The vertical line test tells us that if we can draw a vertical line

that intersects more than one point on the graph of a relation,

then the relation is not a function.

In this case, the only graph that is not a function is A.

If we draw a vertical line on the graph, it's possible that

the lie will hit two points on the graph telling us that it's not a function.