Using the TI-85 graphing calculator, graph the following function

for **x** in the interval **[-1, 4]**.

[Press here to see animation again!]

- If you are not familiar with the graphing of functions on the TI-85, then first read the Initial Setup page from Little's Basic Guide to the TI-85.
- Press the GRAPH key and then pick
**y(x)=**by pressing the F1 key. - If necessary, keep pressing F4 key until only
**y1=**appears on the screen. - Type in
**(x + 1) (x**__<__2) + (2 - x) (x > 2)and press the ENTER key.

- You can get the
by pressing the 2nd, TEST and then the F4 key.__<__ - The range settings for the graph above is
**[-1, 4]**×**[-3, 3]**.

The graph above is incorrect; a better approximation to the correct graph is

To obtain this,

- Press the GRAPH key followed by the MORE key.
- Press the F3 key to pick
**FORMT**from the menu. You will see a menu: - Use the arrow keys to move to the item
**DrawDot**on the third line and pres the ENTER key. - Press F5 to choose
**GRAPH**to get the second graph above.

If you want to enter a piecewise defined function with more than two parts as, for example, the function

then type

where the term in the middle contains the function