Y is the inverse proportion function of X. when x = 3, y = 8, find the functional relationship between Y and X

Y is the inverse proportion function of X. when x = 3, y = 8, find the functional relationship between Y and X

Let y = K / X be the analytic expression of the inverse proportion function. Substituting x = 3 and y = 8 into y = K / x, we can get the following result:
8=k/3
k=24
Then we substitute k = 24 into y = K / X to get the analytic expression of inverse proportion function, which is y = 24 / X