Question

Function or not?
Please help me

Answer 1

Function Not a function

not a Function function

pg 2

B- explanation is that 2 inputs dont have the same output 8-1, 8-1,4-1,3-1

pg 3

1. yes; -5 is not in the set

2. yes; 2 is not in the set

3. no; .75 is 3/4

4. no; -4 is already in the set