Question

For each relation, decide whether or not it is a function.

Answer 1

each element of the domain can have only one assignment

Answer 2

(x,y) domain is the x value and range is the y value. So there is only one range for each domain. For example, (5,2) (5,9) is not a funtion and (5,2) (2,5) is a function. so...

1. is a function

2. is a function

3. is not a function

4. is not a function