To Calculate The Focus And Length Of Latus Rectum; Parabolic Graph Analysis; Circular Graph Analysis; Elliptical Graph Analysis - Casio FX-CG20 AU User Manual

After graphing a conic section, press !5(G-SOLVE) to display the following graph
analysis menus.
u Parabolic Graph Analysis
• { FOCUS } / { VERTEX } / { LENGTH } / { e } ... {focus}/{vertex}/{length of latus rectum}/{eccentricity}
• { DIRECTX } / { SYMMETRY } ... {directrix}/{axis of symmetry}
• { X-ICEPT } / { Y-ICEPT } ... {
u Circular Graph Analysis
• { CENTER } / { RADIUS } ... {center}/{radius}
• { X-ICEPT } / { Y-ICEPT } ... {
u Elliptical Graph Analysis
• { FOCUS } / { VERTEX } / { CENTER } / { e } ... {focus}/{vertex}/{center}/{eccentricity}
• { X-ICEPT } / { Y-ICEPT } ... {
u Hyperbolic Graph Analysis
• { FOCUS } / { VERTEX } / { CENTER } / { e } ... {focus}/{vertex}/{center}/{eccentricity}
• { ASYMPT } ... {asymptote}
• { X-ICEPT } / { Y-ICEPT } ... {
u To calculate the focus and length of latus rectum
Example To determine the focus and length of latus rectum for the parabola X =
(Y – 2)
Use the following V-Window settings.
Xmin = –1,
Ymin = –5,
m Conic Graphs
w
bwcwdw6(DRAW)
!5(G-SOLVE)
1(FOCUS)
(Calculates the focus.)
!5(G-SOLVE)
5(LENGTH)
(Calculates the length of latus rectum.)
x y
-intercept}/{ -intercept}
x y
-intercept}/{ -intercept}
x y
-intercept}/{ -intercept}
x y
-intercept}/{ -intercept}
2 + 3
Xmax = 10,
Ymax = 5,
5-60
Xscale = 1
Yscale = 1