Casio fx-9860GII - 2.4 Finding a numerical derivative

3. Enter the data from the table into the lists pressing
l after each entry.
4. Press q(GRPH), u(SET), change settings to match
the screen shot on the right.
5. Press
d then q(GPH1).
(3c) How to construct a piecewise function using the Casio fx-9860GII
Equation of Line Domain
y = −
5
8
x + 20
0 ≤ x < 8
y =
−
x
+
23
8 ≤ x < 16
y = −
1
4
x + 11
16 ≤ x < 20
y = −
1
2
x + 16
20 ≤ x ≤ 32
1. From the main menu, highlight the GRAPH icon
and press l. If there is an equation entered
already, highlight the equation then press
w(DEL)
then q to delete it.