Respuesta :
If the line is linear and passes through the point (0,0) then the function is proportional.
3y = -2x + 6 is linear but does not pass through the point (0,0).
3y = -2x + 6 is nonproportional.
3y = -2x + 6 is linear but does not pass through the point (0,0).
3y = -2x + 6 is nonproportional.
3y = -2x + 6 is not proportional because it does not pass through the origin.