Casio FX-CG20 Manual

A SERVICE OF

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CASIO

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u To modify a graph in the Conic Graphs mode

Example In the Conic Graphs mode, register the parametric equation X = H + T ;

Y = K + AT

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and the initial values A=2, H=0, K=0. Next, use the Modify

function to change H to −1 and then change K to −1, and observe the

changes in the graph.

1. From the Main Menu, enter the Conic Graphs mode.

2. Press 3(PARAM) to display the parametric equation list.

3. Use c to move the highlighting to X = H + T ; Y = K + AT

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and then press w.

• This will display a coefficients input screen.

4. Perform the following key operation to input A=2, H=0, K=0.

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5. Press 1(MODIFY) to execute the Modify function.

6. Press c. Check to make sure that the H=0 line is magenta colored and then press d.