How do you find inverse function in TI-89?

Test Preparation
1

<p>just for convenience</p>

2

<p>I'm not sure if there's a function to do so directly (there may be?), but why not just use solve() to switch around the variables?</p>

<p>IE - find the inverse of y=5x+10</p>

<p>solve(x=5y+10,y)</p>

<p>That's how i'd do it.....</p>

3

<p>thats a great way to do it!
thanks</p>

4

<p>Thanks for the tip, any others for someone taking math IIc with the 89?</p>

5

<p>i can't believe i didn't think of that before. kudos to you!</p>

6

<p>Yeah, thats the easiest way to solve it.</p>

<p>Its just the function that undoes what the original function did. So invf(f(x) = x</p>

7

<p>Bumping an important and potentially helpful old thread.</p>