Bifalgorithm post · Brisk · Chapter 1

Is the relation still a function after removing (Julie, volleyball)?

Is the relation still a function after removing (Julie, volleyball)? (Brisk · Chapter 1) — "Suppose we then re- move (Julie, volleyball). We now have { (Julie,…

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Determining whether the modified relation is a function
The pair (Julie, volleyball) is removed
The resulting set is {(Julie, basketball), (Sam, basketball), (Chuck, basketball)}
The resulting relation is evaluated as a function
(Julie, basketball)
(Sam, basketball)
(Chuck, basketball)
Yes, it is a function

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Is the relation still a function after removing (Julie, volleyball)?

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Brisk

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"Suppose we then re- move (Julie, volleyball). We now have { (Julie, bas- ketball), (Sam, basketball), (Chuck, basketball) }. Is this a function? Yes. Congratulations."

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