Casio FX-7400GII User Manual download pdf (Page 475)

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5. Press 6(DRAW).

• This draws a quadratic regression graph and overlays it over the original graph.

• To delete the overlaid quadratic regression graph, press !4(SKTCH) and then

1(Cls).

k Overlaying a Y=f(x) Graph on a Sampled Result Graph

Use the following procedure when you want to overlay a Y=f(x) graph on the sampled result

graph.

To overlay a Y=f(x) graph on an existing graph

1. On the graph screen, press K, and then 5(Y=fx).

• This displays the graph function list. Any functions you have previously input on the

graph function list appear at this time.

2. Input the function you want to graph.

• To input a function, use the f and c cursor keys to move the highlighting to the line

where you want to input it, and then use the calculator keys for input. Press w to store

the function.

3. On the graph function list, specify which functions you want to graph.

• Graphing is turned on for any function whose “=” symbol is highlighted. To toggle

graphing of a function on or off, use the f and c cursor keys to move the highlighting

to the function, and then press 1(SEL).

11-9

Graph Analysis Tool Graph Screen Operations

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Casio FX-7400GII User Manual Page 475

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