and its derivative on the closed interval [-2,2].

1. Press the GRAPH key and then pick \y(x)= by pressing the F1 key.
2. If necessary, keep pressing the F4 key until only \y1= appears on the screen.
3. Be sure that PLOTS 1, 2 and 3 are turned-off.
4. At the prompt \y1=, type in
   abs x

   and press the ENTER key.

   There are two ways to enter "abs" :

   • Press 2nd MATH, then F1, and then F5.
   • Or, you can simply type in "a" "b" "s", but be sure you use lower case lettering.
5. At the prompt \y2= , type in
   der1(y1,x,x)

   You can simply type in "der1" or it can be found by pressing 2nd CALC and then F3.

6. The WINDOW settings for the graph above is  [-2, 2] × [-3, 3]:
   

   Go to the WINDOW menu by pressing 2nd M2.

7. Press the F5 key to pick GRAPH from the menu. You should see the graphs