Answer:
1. not function
2. not function
3. not function
4. function
5. function
6. function
Step-by-step explanation:
3.{(-1,0).(-1, 1), (2, 2), (2,-2) (3,3)}
in every parentheses there is x and y,
the first number is the x and the second
number is y.
let's say that the parentheses (-1,0)
-1 is the x
0 is the y
{(-1,0).(-1, 1),(2, 2),(2,-2) (3,3)} in this group
notice that -1 are used twice to be the x.
(-1,0),(-1,1)
therefore it is not a function
it is important that the x factors are not similar
to determine if it's a function or not
if x is used twice or more it's considered not function but if x is just used once then it's a function
