What do i need to press if i want to draw the inverse of f(x)=x+5x^4 for example?(Doh)

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- Jul 4th 2008, 11:42 AMtupacTI-89 Titanium: Drawing the inverse.
What do i need to press if i want to draw the inverse of f(x)=x+5x^4 for example?(Doh)

- Jul 4th 2008, 12:15 PMChris L T521
The only thing I can think of at the moment is this: write the equation as parametric equations. Since $\displaystyle y=x+5x^4$, the inverse would be $\displaystyle x=y+5y^4$. Now, if we left $\displaystyle y=t$, then $\displaystyle x=t+5t^4$.

You can now plug this into your calculator. Make sure you're in parametric mode!

http://img.photobucket.com/albums/v4...LT521/PAR1.jpg

http://img.photobucket.com/albums/v4...LT521/PAR2.jpg

http://img.photobucket.com/albums/v4...LT521/PAR3.jpg - Jul 4th 2008, 12:15 PMgalactus
I do not know of such a capability. If you find one, let me know.