Question

what is the inverse of f(x)=2x+8/9x-7?

Answer 1

To find an inverse you switch the x and y values and solve back for y. f(x) can be seen as y in this case.

Answer 2

f(x)=(ax+b)/(cx+d) , inverse of f(x) = (-dx+b)/(cx-a) practically

Answer 3

Thanks!