50 points! math help! will mark brainliest

Which equation represents a direct variation between x and y?

Select one:
A. y − 2= 3x
B. 2y −4x= 0
C. 2y +2 = 6x
D. 2x +3y = 8

Let y vary directly with x, and let the point (4, 8) satisfy the relationship between x and y. Which equation represents the relationship?