Asked by needsomehelp

For the following items, determine whether the relation is a function. Explain why or why not.
(a) {(a,b),(c,d),(e,d)}
(b) {(5,2),(6,1),(6,2),(4.8)}

Answers

Answered by oobleck
(a) yes - all the 1st elements are unique
(b) no. How can f(6) be both 1 and 2?
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