Question

Suppose that x and y vary inversely and that x = 2 when y = 8. How do you write the function that models the inverse variation?

Answer 1

The variation equation is `x*y=16`

Explanation:

`x prop 1/y or x =k*1/y ;x =2; y=8 :. 2=k*1/8 or k=16` (k is constant of proportionality) So the variation equation is `x=16/y or x*y=16`[Ans]