SOLUTION: please help me with this problem f:R to R is defined by f(x)=2x+1 then f^-1(x)= y=2x+1 Interchange x and y to get the inverse x=2y+1

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: please help me with this problem f:R to R is defined by f(x)=2x+1 then f^-1(x)= y=2x+1 Interchange x and y to get the inverse x=2y+1      Log On


   

Question 74088: please help me with this problem f:R to R is defined by f(x)=2x+1 then f^-1(x)=
y=2x+1
Interchange x and y to get the inverse
x=2y+1
solve for y
y=(1/2)x-1
-------------
Cheers,
Stan H.

this is from a homework assignment thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the geometric mean between 2sqrt2 and 6sqrt6.
I don't know how to solve this problem.