Ming wrote the table of points below. x y 5 10 10 20 15 30 Which explains whether or not Ming has described a proportional relationship, and why? Ming has described a proportional relationship because the ordered pairs are linear and the line passes through the origin. Ming has not described a proportional relationship. Although it is a linear relationship, it does not pass through the origin. Ming has not described a proportional relationship. Although it passes through the origin, it is not a linear relationship. Ming has described a proportional relationship because the line does not pass through the origin.