19990401
i
4
(G-SLV)
h
(Y-Icpt)
(Calculates the
y
-intercept.)
• Press
e
to calculate the second set of
x
-/
y
-intercepts. Pressing
d
returns to the first
set of intercepts.
u
To draw and analyze the axis of symmetry and directrix
[G-SLV]
-
[Sym]/[Dirtrx]
○ ○ ○ ○ ○
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
4
(G-SLV)
e
(Sym)
(Draws the axis of symmetry.)
i
4
(G-SLV)
c
(Dirtrx)
(Draws the directrix.)
5-11-20
Function Analysis