SOLUTION: I really need help soon!
Given f(x) = 2x^3 - 7 find f^-1(x)
Algebra.Com
Question 896543: I really need help soon!
Given f(x) = 2x^3 - 7 find f^-1(x)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Given f(x) = 2x^3 - 7 find f^-1(x)
-------
1st: Interchange x and y to get::
x = 2y^3 - 7
-----
2nd: Solve for "y":
2y^3 = x + 7
---
y^3 = (x+7)/2
---
y = [(x+7)/2]^(1/3
-----------------------
That is f^-1(x)
=========================
Cheers,
Stan H.
-------------------------
RELATED QUESTIONS
Find (fog)(x)
when g(x) = 3/(x - 1), f(x) = (x - 1)/(x - 3)
I really need some... (answered by Fombitz,ewatrrr)
Given a polynomial f(x) and a factor f(x), factor f(x) completely.
My polynomial is... (answered by Fombitz)
I need help with functions I dont really understand.
the question is asking,for each... (answered by richard1234)
I am having a hard time with functions, I need help on setting them up.
Given f(x) =... (answered by cheesey)
given f(x)= (7/x)-3 find... (answered by nerdybill)
Could someone help me?
Given f(x) = 2x - 4,
I need to find f(-3)
Thanks... (answered by checkley71)
I really need help with this stuff I get so confused.
Given f(x)=-4x-4, find... (answered by blondesrbetr37)
I need help with this problem...
Find f'(x)
Y=(2x-1)/(x+3)
Thanks! (answered by solver91311,Alan3354)
I don't understand functions, I really need help.
17.) Let f(x)= 5x and g(x)=-2x-3.... (answered by josgarithmetic)