Respuesta :

Answer:

[tex]\frac{1}{9}[/tex]

Step-by-step explanation:

The equation of proportionality is

y = kx ← k is the constant of proportionality

Given

y = [tex]\frac{x}{9}[/tex] = [tex]\frac{1}{9}[/tex] x ← in form y = kx

with k = [tex]\frac{1}{9}[/tex]