SOLUTION: Find inverse of each function 1) f(x) = x³ + 1 2) f(x) = x-1 ___ 2x+9 3) f(x) = {(4,5),(—1,4),(0,1)}

Algebra ->  Rational-functions -> SOLUTION: Find inverse of each function 1) f(x) = x³ + 1 2) f(x) = x-1 ___ 2x+9 3) f(x) = {(4,5),(—1,4),(0,1)}      Log On


   

Question 1185047: Find inverse of each function
1) f(x) = x³ + 1
2) f(x) = x-1
___
2x+9


3) f(x) = {(4,5),(—1,4),(0,1)}
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Fix question 2. It is not clear.

(1)
f%28x%29=x%5E3%2B1
If switch x and y, then y%5E3%2B1=x
y%5E3=x-1
y=%28x-1%29%5E%281%2F3%29 OR y=root%283%2C%28x-1%29%29
-
f%5E%28-1%29%28x%29=root%283%2C%28x-1%29%29