# Help Me Please Inverse Functions On Casio Fx-9860g Sd

7 replies to this topic

### #1 polo961

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Posted 15 November 2008 - 01:24 AM

Hi every body i hope you're all going well
I have a great problem i don't know how to inverse a function in the graph with my casio fx-9860g sd
i know how to do it manually
and i also know how to make it using a ti-83+
but please i wanna really know how to do it using my beloved casio fx-9860G SD
for your information here is how to do it using the ti-83+ :
this is just an example
Y1=2X+4
2nd PRGM (DRAW)=>>8:DrawInv
vars>>Y vars>> Functions>> Y1
and here we can see the inverse on the graph
so please i wanna your help how can i do this with my casio calc???

### #2 polo961

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Posted 18 November 2008 - 10:24 PM

thanks

### #3 Kapytanhook

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Posted 19 November 2008 - 08:38 AM

Shouldnt you just reverse the X's with the Y's?

so go to the graph function, prss f3, then f4, (Y1 changed to X1)
x1=2y+4.. might do the trick

edit:(no it doesnt, only works for vertical lines srry).

Edited by Kapytanhook, 19 November 2008 - 08:40 AM.

### #4 polo961

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Posted 19 November 2008 - 11:57 AM

I tried that before posting that topic but it doesn't work as it doesn't recognise Y as a vriable if we reverse as you said in your edit
thanks anyway
but please i wanna the help of any body here please help me because i really need to be able to do that

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Posted 19 November 2008 - 01:11 PM

I think you can do like this :

First, type your formula (Y1=2x+1), draw it and then press F4 (Draw) and F4 (Inv). It should draw the inverse.

### #6 kucalc

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Posted 20 November 2008 - 05:55 AM

Yep, that does work.

### #7 polo961

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Posted 20 November 2008 - 12:32 PM

well thank you very much it worked but is there any way to make that work with the table??

### #8 kucalc

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Posted 23 November 2008 - 03:31 PM

Now that I don't think you can do. I guess you would have to do it manually.

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