Question

0 If x and y vary inversely and y=6 as x=7, what is the constant of variation?

Answer 1

k = 42

Explanation:

given that x and y vary inversely then the equation connecting them is

y =
`(k)/(x)` ← k is the constant of variation

To find k use the condition y = 6 when x = 7

k = yx = 6 × 7 = 42