Casio ClassPad 300 User Manual page 255

Analyzing a Function Used to Draw a Graph
u To obtain the minimum value, maximum value,
a function
Example: To graph the function
(1) Display the View Window dialog box, and then configure it with the following
parameters.
xmin = –7.7, xmax = 7.7, xscale = 1
ymin = –3.8, ymax = 3.8, yscale = 1
(2) On the Graph Editor window, input and store
then tap $ to graph it.
• Make sure that only
(3) Tap [Analysis], [G-Solve], and then [Min], or tap I.
• This displays "Min" on the Graph window, and locates a pointer at the first solution of
the minimum value (minimum value of
y
-coordinates at the current pointer location are also shown on the Graph window.
(4) To obtain other minimum values, press the left or right cursor key, or tap the left or right
graph controller arrows.
• If there is only one solution, the pointer does not move when you press the cursor
key.
Result Screenshots
Tip
• To obtain the other values, select the applicable command on the [G-Solve] menu in step (3) of
the above procedure.
To obtain this value:
Maximum value
y
-intercept
Point of inflection
3-8-3
1
y x x x
2
= ( + 2)(
2
y
1 is checked.
y
for smallest value of
Select this G-Solve menu command:
Max (or tap U)
y
-Intercept
Inflection
20021201
y
-intercept, and inflection of
– 2) and obtain its minimum value
1
y x 2 x x
= ( + 2)( – 2) into line
2
x
). The
y
1, and
x
- and