Question

Find the domain and range of the relation and determine whether it is a function.

domain: all real numbers; range: all real numbers; yes, it is a function
domain: x > 0; range: y > 0; yes, it is a function
domain: positive integers; range: positive integers; no, it is not a function
domain: x > 0; range: y < 0; no, it is not a function

Answer 1

@AriPotta

Answer 2

o-o idk

Answer 3

i don't think it's a function though

Answer 4

I thought so too