Try another version of this question Suppose that `y` is directly proportional to `x` . Write your answer as a decimal. `k =`
`y =`
1) Find the constant of proportionality,` ` ` k`, if `y = 9` when `x = 9` .
2) Using the `k` from above write the variation equation in terms of `x` .
`y =`
2) Using the `k` from above find `y` given that `x = 28` . Write your answer as a decimal.
If needed, round to the nearest tenth. 1
`1 x`
28