Answer:
y = 4x y=kx
Explanation:
if you're talking about an equation like this,
y and x relate to each other by multiplying x by 4 hence the table
the k in the equation represents how they relate in a way
1 x 4 = 4
2 x 4 = 8
3 x 4 = 12
if this is confusing comment below and i'll try to clarify
*edited to fix some grammar mistakes lol*