Question

If y varies inversely with x and y=22 when x=10, find the constant of variation

Answer 1

k = 220

Explanation:

Given that y varies inversely as x then the equation relating them is

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

To find k use the condition y = 22 when x = 10

k = yx = 22 × 10 = 220