Saturday

August 2, 2014

August 2, 2014

Posted by **Rob** on Sunday, August 24, 2008 at 7:50pm.

I though that this meant inverse function.

x=2y^3-7

x+7=2y^3

(x+7)/2=y^3

((x+7)/2)^(1/3)=y

so this meant f^-1(-2) = 1.35721

The professor posted the answer as being 6. I'm not sure if I misunderstood the question or if I'm completely off in my answer.

Any ideas?

thanks

- calculus -
**bobpursley**, Sunday, August 24, 2008 at 8:34pmIt looks correct to me

**Related Questions**

math - The cost of producing q articles is given by the function C=f(q)=100+2q...

Pre-Calculus - Find the inverse function for the function f(x)=2^(x)+1/2^(x)-1 ...

Pre-calculus - Given the following values for f(t): t : f(t) 3 : -7 6 : 6 9 : 19...

pre calculus - Find the inverse of the function below. Graph the function below ...

math - simplify -cd^-4e^-1 okay rob or jim. read my math tip notes, okay? ...

Calculus - Given the function" f(x)=1/4x− 3, find a formula for the ...

math - Could you show me step by step how to find the inverse of this problem: ...

math-calculus - 1.For any function y+f(x), express dy/dx using limit notation. ...

calculus - f(x) = (x+2)/(x+6) What is f^(-1)(-6)? (what is f inverse of -6) I ...

pre-calculus - the function f(x)=4/x-7 is one to one a. find the inverse of f b...