SOLUTION: y varies inversely as the square of x, and y=7 when x=3 Find the equation of variation for the given situation.

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Question 366530: y varies inversely as the square of x, and y=7 when x=3
Find the equation of variation for the given situation.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, 

*Note: When Quantities vary inversely,they are related by the relationship:

 y+=+%28k%2Fx%29 k being  the constant of proportionality.

In this example: y varies inversely as the square of x

y = k/x^2

y=7 when x=3

7 = k/9

63 = k



y = 63/x^2 is the equation of variation for this given situation