20060301
S
To determine coordinate
s
at a particular point on a graph
Example:
To graph the function
y
=
x
(
x
+ 2)(
x
– 2) and determine the
y
-coordinate when
x
= 0.5, and the
x
-coordinate when
y
= 2.2
(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
(
x
+ 2)(
x
– 2) into line
y
1, and then
tap
to graph it.
• Make sure that only
y
1 is checked.
(3) To obtain the value of
y
for a particular
x
-value, tap [Analysis], [G-Solve], and then
[
y
-Cal ].
• This displays a dialog box for specifying the
x
-value.
(4) For this example, input 0.5 and then tap [OK].
• This moves the pointer to the location on the graph where
x
= 0.5, and displays the
x
-coordinate and
y
-coordinate at that location.
(5) To obtain the value of
x
for a particular
y
-value, tap [Analysis], [G-Solve], and then
[
x
-Cal].
• This displays a dialog box for specifying the
y
-value.
(6) For this example, input 2.2 and then tap [OK].
• This moves the pointer to the location on the graph where
y
= 2.2, and displays the
x
-coordinate and
y
-coordinate at that location.
Re
s
ult Screen
s
hot
s
3-8-5
Analyzing a Function Used to Draw a Graph
Tip
• When there are multiple results for the above procedure, press
C
to calculate the next value.
Pressing
B
returns to the previous value.
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 ...
