SOLUTION: f(x) = 2x, then f -1(x)

SOLUTION: f(x) = 2x, then f -1(x)

Algebra.Com

Question 763417: f(x) = 2x, then f -1(x)
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
f(x) = 2x
y = 2x
Change x and y about.
x = 2y
2y = x
Divide both sides by 2
y = x/2
f^-1(x) = x/2
Hope this helps.
:-)
RELATED QUESTIONS
If f(x)=2x, then... (answered by ikleyn)

f(x) = (2x + 3)/4 then... (answered by Theo)

LET {{{F(X)=X/(X+1)}}} THEN F(F(X))=... (answered by venugopalramana)

if f(x+1)=2x+7 then f(-2)... (answered by Fombitz)

F(x)=2x then what is f(-3),f(-1) and f(4) (answered by Theo)

f(x)=(2x-1 (answered by ikleyn)

f(x)=x/(x+1) then... (answered by venugopalramana)

if f(x)= 2x-3, then compute... (answered by Edwin McCravy)

f(x)=2x+1 and g(x)=(x-1)/2, then f(g(x)= (answered by Earlsdon)