Which relationships have the same constant of proportionality between y and x as in the equation y=1/2x Choose 3 answers: This is from Khan academy. I'm stuck on it

A and B has the same constant of proportionality

Step-by-step explanation:

Where k is the constant of proportionality

We are supposed to find Which relationships have the same constant of proportionality between y and x as in the equation

On comparing with 1

A)6y = 3x

So, this equation has the  same constant of proportionality

B)

To find the equation :

Formula :

So,

So, this equation has the  same constant of proportionality

C)

To find the equation :

Formula :

So,

So, this equation do not has the same constant of proportionality

D)

To find the equation :

Formula :

So,

So, this equation do not has the same constant of proportionality

Hence A and B has the same constant of proportionality

idk man good luck man