Question

find the inverse of f(x)=-9/x+8

Answer 1

Just solve for \(x\).

Answer 2

Do you know how to solve for a variable?

Answer 3

Also is it \[
f(x) =-\frac{ 9}{x}+8
\]Or \[
f(x) = -\frac{9}{x+8}
\]

Answer 4

if f(x)=−9/x+8 then f(x)^-1 = -9/(x-8)
if f(x) = -9/(x+8) then f(x)^-1 = - (x+8)/x

Answer 5

@kimcarlos: no it's not that . inverse function is replacing the x by y and y by x in the original function and then solve for y.

Answer 6

@Hoa thats what i exactly did..even though it does actually go with the very essence of an inverse function,

Answer 7

to me, when replacing x by y. I got y = (-9/x ) -8 is the inverse function. I just compared with yours and figure out that they are not the same. sorry if I am wrong. but if I am not wrong, would you please re-check the work