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• 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)
2
+ (Y + 1)
2
= 2
2
m Conic Graphs
ccccw
-cw-bwcw6(DRAW)
!5(G-SOLVE)
1(CENTER)
(Calculates the center.)
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