Question

How can I find the domain and range of a non function?

Answer 1

what form does your "non function" take?

Answer 2

one sec, let me send a picture

Answer 3

domain is the possible x values, so in the first one only two numbers in the domain, \(\{-3,2\}\)

Answer 4

ok, what do the open circles mean and should i include them in my domain and range?

Answer 5

And do i include every coordinate or just the end ones?

Answer 6

@DangerousJesse

Answer 7

in number two, the domain is \((-5,5]\) or \(-5<x\leq 5\)
the opens circle means \(-5\) is not in the domain, the closed circle means \(5\) is in it

Answer 8

ok, so i only graph the ending coordinates and the open circle means that number isnt the domain or range. thanks!

Answer 9

yw