• When calculating two foci for an ellipse or hyperbolic graph, press e to calculate the
second focus. Pressing d returns to the first focus.
• When calculating two vertexes for a hyperbolic graph, press e to calculate the second
vertex. Pressing d returns to the first vertex.
• Pressing e when calculating the vertices of an ellipse will calculate the next value.
Pressing d will scroll back through previous values. An ellipse has four vertices.
u To calculate the center
Example
To determine the center for the circle
(X + 2)
m Conic Graphs
ccccw
-cw-bwcw6(DRAW)
!5(G-SOLVE)
1(CENTER)
(Calculates the center.)
2
2
2
+ (Y + 1)
= 2
5-63