Question

A line passing through which of the following pairs of coordinates represents a proportional relationship?

(1, 2) and (2, 3)
(1, 3) and (3, 6)
(1, 1) and (1, 3)
(1, 3) and (2, 6)

Answer 1

the answer is D (1, 3) and (2, 6) 1*6=6 3*2=6