SOLUTION: Thank you in advance tutor,I would like to ask you this proportion question Given that y varies inversely as the reciprocal of {{{x^2}}} and y= 3 when x=2 Find the equation relat

Algebra ->  Proportions -> SOLUTION: Thank you in advance tutor,I would like to ask you this proportion question Given that y varies inversely as the reciprocal of {{{x^2}}} and y= 3 when x=2 Find the equation relat      Log On


   

Question 107564: Thank you in advance tutor,I would like to ask you this proportion question
Given that y varies inversely as the reciprocal of x%5E2 and y= 3 when x=2
Find the equation relating x and y
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Given that y varies inversely as the reciprocal of x%5E2 and y= 3 when x=2
Find the equation relating x and y
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y = k/(1/x^2)
Need to find "k".
3 = k/(1/4)
k= 3/4
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EQUATION:
y = (3/4)/(1/x^2)
y = (3/4)x^2
====================
Cheers,
Stan H.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
There is a constant k which relates y and x
y+=+k%281%2Fx%5E2%29
y = 3 when x = 2
3+=+k%281%2F%282%5E2%29%29
3+=+k%281%2F4%29
k+=+12
The equation is y+=+12%281%2F%28x%5E2%29%29