As y varies inversely with x, we have a function of the form:
y = k / x
We must find the value of k:
For this we substitute y = 5 when x = 5.
We have then:
5 = k / 5
k = 5 * 5
k = 25
Then, the function is:
y = 25 / x
Answer:
the inverse variation function is:
y = 25 / x
