Question

Which of these is NOT a function?



(1 point)
Responses

1,3, and 4 only
1,3, and 4 only

3 and 4 only
3 and 4 only

2,3, and 4 only
2,3, and 4 only

All of them
All of them

3 only
3 only

1 and 2 only
1 and 2 only
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Answer 1

To determine which options represent something that is NOT a function, we'll generally need to review each item (1, 2, 3, and 4) in the context of the definition of a function. A function is a relationship where each input (or domain element) maps to exactly one output (or codomain element). Here’s how you might analyze the options if we were to review them:

1. Inspect the definitions or descriptions for each item (1, 2, 3, and 4).
2. Identify if any of them violate the vertical line test or the rule that a single input must correspond to only one output.

Since you haven’t provided specific descriptions for items 1, 2, 3, and 4, I'm unable to assess directly. However, based on typical question formats, here are the possible steps to determine which ones are functions or not:

- If any option has an input that maps to multiple outputs, it is not a function.
- If all inputs map to a unique output, then those can be considered functions.

Please provide the details for items 1, 2, 3, and 4, and I can help you analyze them to find out which is not a function.