Question

How do you find the inverse of `y= -2x -4`?

Answer 1

Inverse of `y= -2 x-4` is `f^-1(x)=-(x/2+2)`

Explanation:

`y= -2 x-4 :. -2 x= -y - 4 :. x = -y/2- 2`

`:. f^-1(y)=-y/2-2 :. f^-1(x)= -x/2-2=-(x/2+2)`

Inverse of `y= -2 x-4` is `f^-1(x)=-(x/2+2)` [Ans]