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Which things are functions and which aren't

Which things are functions and which aren't-example-1
User Nichele
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2 Answers

3 votes

Answer: the curved one is not a function because it is curved.

Explanation:

User Aelkz
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3 votes

Answer:

Vertical lines are not functions.(not functions )

Function with no arguments and no return value.

Function with no arguments and a return value.

Function with arguments and no return value.

Function with arguments and a return value.

Explanation:

The equations y = ± x and x 2 + y 2 = 9 are examples of non-functions because there is at least one -value with two or more -values. The vertical line test is a great way to visualize a violation of the definition of a function.

User Prashant Chaudhari
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