SOLUTION: For the function f, y= F(x) is inversely proportional to x, where x > 0. If f(4)=64. and the value of f(x)=32, what is the value of x?

Algebra ->  Functions -> SOLUTION: For the function f, y= F(x) is inversely proportional to x, where x > 0. If f(4)=64. and the value of f(x)=32, what is the value of x?      Log On


   



Question 177521: For the function f, y= F(x) is inversely proportional to x, where x > 0. If f(4)=64. and the value of f(x)=32, what is the value of x?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
if y is inversely proportional to x then
:
yx=k.....where k is a constant
:
64(4)=256.....so our constant in this case is 256
:
so now we want to find x when y=32
:
32(x)=256
:
highlight%28x=8%29