Question

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?
(registration number, litter number)
(microchip number, registration number)
(litter number, microchip number)
(microchip number, litter number)

Answer 1

man do you have a whole lesson on this?

Answer 2

I thought it was A,?

Answer 3

i want to go with c or d

Answer 4

im not sure about this one, man the wording is so confusing

Answer 5

@brooke..help00

Answer 6

a

Answer 7

(litter number, microchip number)
a relation is a function when there is only 1 output for any chosen input