Casio FX-9750G, FX-9860GII GRAPH, GRAPH, Example, (x – 2), Draw a line that is tangent to point (2, 0) on the graph for y = x (x + 2)

1.From the Main Menu, enter the GRAPH mode.

2.Make V-Window settings.

3.On the Setup screen, use the “Sketch Line” setting to specify the line style you want.

() … Normal (initial default)

() … Thick (twice the thickness of Normal)

() … Broken (thick broken)

() … Dot (dotted)

4.Input the function of the graph.

5.Draw the graph.

6.Select the sketch function you want to use.*1

(SKTCH)(Cls) ... Screen clear (Tang) ... Tangent line (Norm) ... Line normal to a curve (Inv) ... Inverse function*2 (E)(PLOT)

{Plot}/{Pl • On}/{Pl • Off}/{Pl • Chg} ... Point {Plot}/{On}/{Off}/{Change}

(E)(LINE)

{Line}/{F • Line} ... {connects 2 points plotted by (E)(PLOT) with a line}/{for drawing a line between any 2 points}

(E)(Crcl) ... Circle (E)(Vert) ... Vertical line (E)(Hztl) ... Horizontal line (E)(E)(PEN) ... Freehand (E)(E)(Text) ... Text input

7.Use the cursor keys to move the pointer () to the location where you want to draw, and press U.*3

*1 The above shows the function menu that appears in the GRAPH mode. Menu items may differ somewhat in other modes.

*2 In the case of an inverse function graph, drawing starts immediately after you select this option.

*3 Some sketch functions require specification of two points. After you press Uto specify the

first point, use the cursor keys to move the pointer to the location of the second point and press U.

•You can specify line type for the following sketch functions: Tangent, Normal, Inverse, Line, F • Line, Circle, Vertical, Horizontal, Pen

Example	Draw a line that is tangent to point (2, 0) on the graph for y = x (x + 2)
	(x – 2).

KGRAPH

(V-WIN)(INIT))

K(SET UP)AAAAAAAA*())

*fx-7400Gɉ, fx-9750Gɉ: AAAAAAA

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