Datasheet

A Graphical Look At Continuity “How-To”
The following will demonstrate how to graph a function, graph a split-defined
function and examine its behavior on the CASIO fx-9750GII.
Explore the behavior of the function f(x) =
−x
2
+ 3x − 5.
To display a graph of the function:
1. From the Main Menu, highlight the GRAPH
icon and press
l or press 3.
2. To delete any previous equations, highlight
the equation and press w(DEL)q(Yes.)
3. Enter the equation in Y1 by pressing
nfs+3f-5l.
4. Set the view window to the initial screen by
pressing Le(V-Window)q(INIT). Then,
change the Ymin to −9.3 and the Ymax to 9.3.
This view window will be used in this activity to
give the best display of the quadratic functions.
5. Press EXIT to return to the main GRAPH screen.
6. Press
u(DRAW) to view the graph of the
function.
Activity 4 • Calculus with the Casio fx-9750GII
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