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Which of these relations is a function?

User Max Tet
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1 Answer

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The relation representing a function is where each input corresponds to a unique output. In this context, Option B is a function as each x-value has a distinct y-value.

The relation that represents a function is the one where each input (x-value) corresponds to only one unique output (y-value). Let's analyze the given options:

A. {(1, 2), (2, 3), (1, 4)} - Not a function as 1 has two different corresponding y-values.

B. {(3, 5), (2, 6), (1, 3)} - Function as each x-value has a unique y-value.

C. {(4, 7), (5, 8), (6, 7)} - Function as each x-value has a unique y-value.

D. {(1, 2), (2, 3), (3, 4)} - Not a function as 2 has two different corresponding y-values.

Therefore, the correct option is B. This represents a function as each input (x-value) has a unique output (y-value).

Complete question:

Which of the following relations is a function, given the set of options?

A. {(1, 2), (2, 3), (1, 4)}

B. {(3, 5), (2, 6), (1, 3)}

C. {(4, 7), (5, 8), (6, 7)}

D. {(1, 2), (2, 3), (3, 4)}

User Ashfaq
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