Respuesta :

If y varies directly with x, then a relationship exists in the form y = kx +c
where k =  the constant of variation.

The given relationship is 
3y = 7x - 18
or
y = (7/3)x - 6
Therefore the constant of variation is 7/3.

Answer:  D. Yes; 7/3
Sorry for the late reply, but the answer is D (yes;7/3)