Answer:
D = {-5, 7, 8, 9}
R = {-3, 1, 3, 5}
Explanation:
Since 'C' does not repeat any domain values, it is a function.
The x-values of a function are the domain.
{(9, 1) (8,-3) (7,5) (-5,3)}
The domain is {-5, 7, 8, 9}.
The y-values of a function is the range.
{(9, 1) (8,-3) (7,5) (-5,3)}
The range is {-3, 1, 3, 5}.