1) because y is proportional to x+2.

So let the functional relationship between y and x be y=k(x+2).

So y=kx+2k.

Because when x= 1, y=-6.

So -6=k+2k。

So k=-2

Replace y=k(x+2) with k=-2.

y=-2x-4

2) When y=2, the original formula =

2=-2x-4

So x=-3.