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# y is inversely proportional to the square of x. When x = 3, then y = 4. Find the...

### Question

y is inversely proportional to the square of x. When x = 3, then y = 4. Find the constant of proportionality.

### Options

A) $$48$$

B) $$\frac{4}{9}$$

C) $$2.25$$

D) $$36$$

## Dicussion (1)

• Y~1/x² (Pardon the proportionality sign)
Y=k/x²
K=yx²
Substitute the values
K=4×3²
k=36