Answer:

Step-by-step explanation:
6 is the whole number, while 2 is the numerator and 5 is the denominator.
The set is not closed
Example
-4 * -2 = 8
8 is not a negative integer
Y= 12 -3x so if you take x as 0 y=12 x=1 y=9 x=2 y=6
(0, 12) (1,9), (2,6) are on the graph