Question

Suppose that x and y vary inversely and that Y=8/3 when x = 8. Write a function that models the inverse variation and find y when x = 4.

Answer 1

xy = k

solve for k...

(8) * (8/3) = (64/3) = k

y = k / x

when x = 4,

y = (64/3) * (1/4) = (16/3)


Hope this helps!