Homework 3 P11 Is this relation a function Write either Yes

Homework 3 P11

Is this relation a function?    (Write either \"Yes\" or \"No\")

Write \"Does Not Exist\" if the quantities do not exist.

Solution

Yes this is a many one function. Different elements maps to a single element {0}.

The domain of the function is {-2,-8,-7,7,-3}.

The range of the function is {0}.