Casio CLASSPAD 330 3.04 - Manual (Page 320)

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Analyzing a Function Used to Draw a Graph
(2) On the Graph Editor window, input and store y 1 = x 3 – 1 into line y 1, and then tap
to graph it.
• Make sure that only “ y 1” is selected (checked).
(3) Tap [Analysis], [G-Solve], and then [Inflection].
• This causes “Inflection” to appear on the Graph window, with a pointer located at the
point of inflection.
Tip
• If your function has multiple inflection points, use the cursor button or graph controller arrows to
move the pointer between them and display their coordinates.
S To obtain the volume of a solid of revolution
Example: To graph the function y = x 2
– x – 2 and obtain the volume of a solid of revolution
as the line segment from x = 1 to x = 2 is rotated on the x -axis
(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 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 [ π f ( x ))
2 dx ].
• This displays a crosshair pointer on the graph, and the word “Lower” in the lower right
corner of the Graph window.