Question

Which graph of a relation is not a function

Answer 1

Hi there!

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I believe your answer is:

Graph D

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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.

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

Answer 2

D

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!

:)