If f(x)=2x/x-5 find f^-1(x)

(x) =

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

y = ( multiply both sides by x - 5 )

y(x - 5) = 2x ← distribute left side

xy - 5y = 2x ( subtract 2x from both sides )

xy - 2x - 5y = 0 ( add 5y to both sides )

xy - 2x = 5y ← factor out x from each term on the left side )

x(y - 2) - 5y ← divide both sides by y - 2

x =

Change y back into terms of x with x = (x) , then

(x) =

Look into the image. I hope it helps❤

y-1700=200(x+4)

step-by-step explanation:

200(x+4) is 200x + 800 she is saving 200 per week x is the weeks and the -1700 is. us that’s howmuch she already had