Question

Math question

Answer 1

@phi Is it a function?

Answer 2

it is not a function if you have different "y's" for the same x
you don't have the same x in your list.
so yes, it is a function.

Answer 3

Domain is -1, 1, 3 right??

Answer 4

yes, "domain" is a fancy word for all of the x's (the first number in each (x,y) pair)

Answer 5

So then it's A?

Answer 6

yes

Answer 7

thanks!!!