Casio fx-9860GII Quick Start Manual page 16

CONICS
This section is an overview of the CONICS Icon. To select this icon, highlight it and press or
l
press 9.
The initial CONICS screen allows you to choose from various conic functions, including rectangular,
polar or parametric form. You may use to select the equation of the function in accordance
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with the type of graph you want to draw. Once you have chosen the conic function you would like to
graph, enter the coefficients of the function and then press u(DRAW).
1. To view the graph of the conic: y = 2x - 5x - 3, select the y = AX + BX + C form from the Conics
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formula menu. Enter the coefficients and press u(DRAW).
In the Conics modes, when you press y(G-Solv), although you are still graphing a parabola like in
the Graph mode, notice how the vocabulary and options have changed to be conic specific.
2. For example, you can now examine the line of symmetry for this parabola and the equation of
that line will be displayed. To see the line of symmetry, press w(SYM).
You can continue to analyze different areas of this graph and the line of symmetry will continue to
be displayed.
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fx-9860GII Quick Start Guide