Question

Which graph of a relation is not a function

Answer 1

Hi there!  

»»————-　★　————-««

I believe your answer is:  

Graph D

»»————-　★　————-««  

Here’s why:  

• A common method used for determining if a graph is a function is by conducting the vertical line test.
• Draw a vertical line through any section of the graph. If the graph intercepts the vertical line two times, then it is not a function.
• Graph D would fail the vertical line test, so it is not a function.

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer 2

Answer:

D

Step-by-step explanation:

Any input that has 2 or more outputs is not a function. Since D is the only graph that has two or more lines "overlapping" each other, it is not a function.

Hope this helps!

:)