20060301
S
To obtain the minimum value, maximum value,
f
Max,
f
Min,
y
-intercept,
and inflection of a function
Example:
To graph the function
y
=
x
2
(
x
+ 2)(
x
– 2) and obtain its minimum value
(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
y
=
x
2
(
x
+ 2)(
x
– 2) into line
y
1, and
then tap
to graph it.
• Make sure that only
y
1 is checked.
(3) Tap [Analysis], [G-Solve], and then [Min], or tap
)
.
• This displays “Min” on the Graph window, and locates a pointer at the first solution of
the minimum value (minimum value of
y
for smallest value of
x
). The
x
- and
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.
Re
s
ult Screen
s
hot
s
3-8-3
Analyzing a Function Used to Draw a Graph
1
2
Tip
• To obtain the other values, select the applicable command on the [G-Solve] menu in step (3) of
the above procedure.
Maximum value
Max (or tap
U
)
Select this G-Solve menu command:
To obtain this value:
Minimum value in the range
displayed on the Graph window
y
-intercept
Inflection
Point of inflection
y
-intercept
f
Min
f
Max
Maximum value in the range
displayed on the Graph window
1
2
Summary of Contents for ClassPad 330
Page 11: ...20060301 20090601 ClassPad 330 ClassPad OS Version 3 04 ...
Page 277: ...20060301 3 3 10 Storing Functions 3 Tap AND Plot OR Plot ...
Page 779: ...20090601 S Graph Line Clustered C S Graph Line Stacked E 13 9 2 Graphing ...
Page 780: ...20090601 S Graph Line 100 Stacked F S Graph Column Clustered G 13 9 3 Graphing ...
Page 781: ...20090601 S Graph Column Stacked I S Graph Column 100 Stacked J 13 9 4 Graphing ...
Page 782: ...20090601 S Graph Bar Clustered K S Graph Bar Stacked 9 13 9 5 Graphing ...
