Question

If y varies directly with x, and if y = 14 when x = -14, how do you find the direct variation equation?

Answer 1

`y=-x`

Explanation:

`y=kx` is the equation put `y=14` and `x=-14` to find `k`

`14=k` `xx`-14

`k=14/-14` `k=-1`

So `y=kx` becomes `y=-x`