4-3-8

Drawing a Conics Graph

Drawing a General Conics

Using the conics general equation Ax2 + Bxy + Cy2 + Dx + Ey + F = 0, you can draw a parabola or hyperbola whose principal axis is not parallel either to the x-axis or the y-axis, a slanted ellipse, etc.

Example: To draw x2 + 4xy + y2 – 6x + 6y + 4 = 0

uClassPad Operation

(1)On the Conics Editor window, tap q, or tap [Form] and then [Insert Conics Form].

This displays the Select Conics Form dialog box.

(2)Select “AX2 + BXY + CY2 + DX + EY + F = 0” and then tap [OK].

This closes the Select Conics Form dialog box, and displays the selected equation in the Conics Editor window.

(3)Change the coefficients of the equation as follows: A = 1, B = 4, C = 1, D = –6, E = 6, F = 4.

(4)Tap ^to graph the equation.

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