Monday

April 21, 2014

April 21, 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**

Did I do this right?-Calculus - y' and y'' for x^2- xy + y^2 = 3 y'= (y-2x)/(2y-...

math! - about finding the inverse of y=(2x+1)/(x+3). should you multiply (x+3) ...

Calculus - Find normals to the curve xy+2x-y=0 that are parallel to the line 2x+...

Calculus - Sketch the region enclosed by the given curves. Decide whether to ...

CALCULUS:) - Sketch the region enclosed by the given curves. Decide whether to ...

Calculus - sketch the region enclosed by the given curves. Decide whether to ...

Calculus - The point (1,-2) is on the graph of y^2-x^2+2x=5. Find the value of (...

Calculus - If x = t^2 + 1 and y = t^3, then d^2y/dx^2 = I know I can solve for t...

linear algebra - Use an inverse matrix to solve each system of linear equations...

linear algebra - Use an inverse matrix to solve each system of linear equations...