Select each option that represents a proportional relationship between x y

We're having a hard time selecting anything, because
you won't let us see what the options are.

Any option that looks like

       x  =  K y
or
       y  =  K x
or
    A x  =  K y
or
    A y  =  K x
or
    A x  -  K y  =  0
or
    A y  -  K x  =  0
   
is a proportional relationship between 'x' and 'y'.

The 'A' and 'K' can be any number except zero.

There is no graph but what i can say is that 1 is the slope and that -2 is the y- intercept