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lisa123465
lisa123465
22.08.2019 • 
Mathematics

Purebred dogs are first assigned the same litter number until they are individually registered with a name. then the dogs will be assigned a unique registration number with a dog registry. many people choose to have a microchip implanted in the dog so that it can be read to immediately find the dog's owner.
which of the following relations is not a function? (2 points)
(registration number, litter number)
(microchip number, registration number)
(litter number, microchip number)
(microchip number, litter number)

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