Question

please help medal and fan if I havent already
A newly made car will have a model number, a parts number, and a serial number. A model number is assigned by the manufacturer to identify each type of car. A parts number identifies one part of the smaller parts that make up the car. A serial number is unique to each car produced and identifies it.

Which relation is a function?

(parts number, serial number)
(model number, parts number)
(serial number, model number)
(serial number, part number)

Answer 1

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Answer 2

I would say serial number and model number

Answer 3

thank you

Answer 4

lemme know if that's right

Answer 5

I wiil thank you

Answer 6

no problem