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Which relation is a function? PLEASE HELP

Which relation is a function? PLEASE HELP-example-1

2 Answers

10 votes
Answer is A I did this
User Branden Silva
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12 votes

Answer:

A

Explanation:

for the relation to be a function then each value of x in the domain must map to exactly one unique value of y in the range

this is the case for A

in B : 3 → 2 and 3 → 8 ← not a function

in C : - 2 → 5 and - 2 → 7 ← not a function

in D : 2 → 2 and 2 → 3 and 3 → 3 and 3 → 2 ← not a function

User Jonthornham
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