5-11-21

Function Analysis

u To draw and analyze the axis of symmetry and directrix

[G-SLV]-[SYM]/[DIR]

Example To draw the axis of symmetry and directrix for the parabola X = 2(Y – 1)2 + 1

Use the following V-Window settings.

Xmin = –6.3,

Xmax = 6.3,

Xscale = 1

Ymin = –3.1,

Ymax = 3.1,

Yscale = 1 (initial defaults)

mCONICS

w

cwbwbw6(DRAW)

!5(G-SLV)

2(SYM)

(Draws the axis of symmetry.)

!5(G-SLV)

3(DIR)

(Draws the directrix.)

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