Answer:
y = kx
Explanation:
We have to write an equation that states that the relationship between x and y is proportional.
Since x and y are proportional, so we can write symbolically
y ∝ x
⇒ y = kx {Where k is the constant of proportionality}
So, this is the required equation. (Answer)
Geometrically it signifies that it is a straight line having constant slope k and it passes through the origin.