Answer:
y = [tex]\frac{27}{x^2}[/tex]
Step-by-step explanation:
Assuming you require the equation of proportion.
Given y is inversely proportional to x² , then the equation relating them is
y = [tex]\frac{k}{x^2}[/tex]
To find k use the condition if y = 3, then x = 3, that is
3 = [tex]\frac{k}{3^2}[/tex] = [tex]\frac{k}{9}[/tex] ( multiply both sides by 9 )
27 = k
y = [tex]\frac{27}{x^2}[/tex] ← equation of proportion
