Question

How do you find the equation for the inverse of `y=-4x+6`?

Answer 1

`f^-1(x)=3/2-1/4x`

Explanation:

`"rearrange making x the subject"`

`rArr-4x+6=y`

`rArr-4x=y-6`

`rArrx=-1/4(y-6)=3/2-1/4y`

`"the inverse is usually expressed in terms of x"`

`rArrf^-1(x)=3/2-1/4x`