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Which of the following is a function?

Which of the following is a function?-example-1

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3 votes

Answer:D

Step-by-step explanation: To be a function a line must not cross over twice using the vertical line test. So the only one that can be a fuction is the 4th one

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User Tiep Vu Van
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Answer:

Explanation:

The lastlts one because it is the only one that pass the vertical line test.

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User Kurren
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