Question 5
Which set of coordinates represents a function?
(x, y)
(0, 0)
(3, 3)
(3, -3)
(5,5)
(5, -5)
(x, y)
(0,5)
(1, 10)
(2, 15)
(3, 20)
(4, 25)
(x, y)
(1, 1)
(1, 2)
(1,3)
(1,4)
(1,5)
(x, y)
(-2, 4)
(-1, 1)
(0, )
(-1,-1)
(-2,-4)