Texas Instruments TITANIUM TI-89 - Manual (Page 488)

Additional Graphing Topics 488
Drawing the Inverse of a Function Drawing the Inverse of a Function Drawing the Inverse of a Function Drawing the Inverse of a Function
Execute DrawInv from the Home screen or a program. You cannot draw an inverse
function interactively from the Graph screen.
DrawInv expression
For example, use the graph of y1(x)=.1x
3
–2x+6 as shown above.
2. On the Graph screen, press: 2 ˆ
and select 2:DrawFunc .
To display the Home screen and put
DrawFunc in the entry line, press: 2 ˆ
2
3. On the Home screen, specify the function
to draw.
4. Press ¸ to draw the function on the
Graph screen.
You cannot trace, zoom, or perform a
math operation on a drawn function.
Note: To clear the drawn function, press
†
– or –
2 ˆ and select
1:ClrDraw
DrawFunc y1(x) N 6