Question

Which ordered pair would form a proportional relationship with the point graphed below?

On a coordinate plane, a line goes through points (0, 0) and (45, 30).
(10, 10)
(25, 35)
(70, 50)
(90, 60)

Answer 1

The slope is 30/45 = 2/3, so the line is y = (2/3)x. Plugging in the x-values, only (90, 60) satisfies y = (2/3)·90 = 60. Thus (90, 60).