SOLUTION: Y is inversely proportional to x^2 and y=b for a particular value of x. Find an expression in terms of b for y when value of x is tripled.

Algebra ->  Proportions -> SOLUTION: Y is inversely proportional to x^2 and y=b for a particular value of x. Find an expression in terms of b for y when value of x is tripled.       Log On


   

Question 1120695: Y is inversely proportional to x^2 and y=b for a particular value of x. Find an expression in terms of b for y when value of x is tripled.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
What particular value for x? x_sub_r, x%5Br%5D ?

y=k%2Fx%5E2
k=y%2Ax%5E2

y is b when x is x%5Br%5D;
k=b%2A%28x%5Br%5D%29%5E2

highlight%28y=b%2A%28x%5Br%5D%29%5E2%2Fx%5E2%29

If x is tripled, then y=b%2A%28x%5Br%5D%29%5E2%2F%289x%5E2%29