SOLUTION: If f(x) = 5x^7 - 3, then f^-1(x) = a. [(x + 7)/5]^1/3 b. [(x + 3)/5]^1/7 c. [(x + 5)/7]^1/3 d. [(x + 7)/3]^1/5 e. [(x + 3)/7]^1/5 f. [(x + 5)/3]^1/7 g. none of

Algebra ->  Equations -> SOLUTION: If f(x) = 5x^7 - 3, then f^-1(x) = a. [(x + 7)/5]^1/3 b. [(x + 3)/5]^1/7 c. [(x + 5)/7]^1/3 d. [(x + 7)/3]^1/5 e. [(x + 3)/7]^1/5 f. [(x + 5)/3]^1/7 g. none of      Log On


   



Question 50824: If f(x) = 5x^7 - 3, then f^-1(x) =
a. [(x + 7)/5]^1/3
b. [(x + 3)/5]^1/7
c. [(x + 5)/7]^1/3
d. [(x + 7)/3]^1/5
e. [(x + 3)/7]^1/5
f. [(x + 5)/3]^1/7
g. none of these

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If f(x) = 5x^7 - 3, then f^-1(x) =?
-----------------
Rewrite as y=5x^7-3
Interchange x and y:
x=5y^7-3
x+3=5y^7
[(x+3)/5] = y^7
[(x+3)/5]^(1/7)=y
This is the inverse.
Cheers,
Stan H.