The function f(x)varies inversely with x and f(x)=0.5when x=3

Question

Trying to solve this problem

Answer 1

The basic form of an inverse function is

 

f(x) = k/x

 

Given f(x)=0.5 when x=3, we can solve for the constant, k.

 

0.5 = k/3

K =1.5

 

So f(x) = 1.5/x

 

Usually these types of problems then ask you to solve for f(x) given a new x.

Answer 2

are you missing some info ?

f(x)=k/x

0.5=k/3

0.5*3=k

1.5=k

is this what you want ?