Answer:7,-4), (0,9), (2,-2) is a function
(2, 3), (6,-5), (-1,3) is a function.
(1,9).(-3,-2) (1,4) is not a function. It has a repeating x value.
(0,3), (0,7). (4,0) is not a function. It also has a repeating x value.
(-6,5),(-5, 6), (8, 2) is a function.
Explanation: