Answer
The relation does not represent a function.
Work Step by Step
According to the definition of a function, an element from the first set can't be paired with more than one element from the second set.
In this case, "$20$ hours", which is from the first set: "Hours worked", is paired with "$\$200$" and "$\$300$" (Both from the second set: "Salary"). Therefore, this relation can't represent a function.