Question

If x varies inversely as the square of y and x=2 when y=1,find x when y=2

Answer 1

if x is a square of y it must be 2^2=4... so x=4....
hope it helps u...

Answer 2

$so \: x \: varies \: \frac{1}{ {y }^{2} } \\ or \: x = \frac{k}{ {y}^{2} } \: (k = constant) \\ or \: 2 = \frac{k}{ {1}^{2} } \\ or \: k = 2 \\ when \: y = 2 \\ x = \frac{k}{ {y}^{2} } \\ x = \frac{2}{ {2}^{2} } \\ x = \frac{1}{2} (answer)$
hope it helps....pls mark me as brainliest