Casio fx-7400G PLUS Graphing Manual do Utilizador descarregar pdf (Página 24)

Chapter 4 Graphing

uTo draw a line in the STAT, GRAPH and TABLE Modes

Example To draw a line between two points of inflection on the graph of

y = x(x + 2)(x – 2)

1. After graphing the function, display the sketch menu and perform the following

operation to cause the pointer to appear on the graph screen.

!4(SKTCH)4(LINE)2(F-Lin)

2. Use the cursor keys (f, c, d, e) to move the pointer to one of the points of

inflection and press w.

d ~ df ~ f

3. Use the cursor keys to move the pointer to the other point of inflection and press

w to draw the line.

e ~ ec ~ c

uTo draw a line in the RUN or PRGM Mode

The following is the syntax for drawing lines in these modes.

F-Line <

x-coordinate 1>, <y-coordinate 1>, <x-coordinate 2>, <y-coordinate 2>

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