Answer:
E
Step-by-step explanation:
The equation of proportion is
y = kx ← k is the constant of proportionality and
k = [tex]\frac{y}{x}[/tex]
Substitute the values from the table into the equation for k, that is
k = [tex]\frac{2}{3}[/tex] = [tex]\frac{4}{6}[/tex] = [tex]\frac{6}{9}[/tex] = [tex]\frac{2}{3}[/tex]
