Question

If `y` varies directly as `x` and `y=6`, when `x=2`, what is `y` when `x=3`?

Answer 1

`y=9`

Explanation:

We know:
`ypropx`
`y=kx`

Substitute values to find k:
`6=2k`
`k=3`
`y=3x`

`y=3(3)`
`y=9`