Answer:
y = [tex]\frac{36}{x}[/tex]
Step-by-step explanation:
given that y varies inversely as x then the equation relating them is
y = [tex]\frac{k}{x}[/tex] ← k is the constant of variation
To find k use the condition x = 9 and y = 4
k = yx = 9 × 4 = 36
y = [tex]\frac{36}{x}[/tex] ← equation of variation
