Question

Find inverse of F(x) = x+1/x-4

Answer 1

in know about how to switch values then multiply fracton but i'm stuck at seperating x from y

Answer 2

(4x+1)/x-1

Answer 3

so far i have xy -4x = y+1

Answer 4

okay im not quite sure what you are asking but normally you solve for lets say x in terms of y then plug the answer to x back into the equation to solve for y

Answer 5

yes you get x= y+1/y-4 multiply bottom to cancel out then you multiply other side then you get xy -4x = y+1 then how to seperate xy

Answer 6

I have no idea anymore lol. I am just as lost as you. Sorry the answer above is correct though.

Answer 7

it's not correct answer on my assignment it says 4x+1/x-1

Answer 8

i got it correct now... let me type for you

Answer 9

4x+1/x-1 = (4x+1)/x-1 parentheses in this case just organize

Answer 10

\[f(x)= \frac{ x+1 }{ x-4 } x \neq4\]
\[y=\frac{ x+1 }{ x-4 }\]
\[xy-4y=x+1\]
\[xy-x=4y+1\]
\[x(y-1)=4y+1\]
\[x=\frac{ 4y+1 }{ y-1 }\]
Therefore now the inverse is
\[y=\frac{ 4x+1 }{ x-1 }\]

Answer 11

thanks soo much

Answer 12

YOu are most welcomed