c2 = a2 b2

http://en.wikipedia.org/wiki/Ellipse
Oh, so a 2 is the
bigger number.
>
"c " is distance from center to foci along major axis!
c2 = a2 ­ b2 Formula - !!!REMEMBER!!!
Title: Apr 18­8:24 AM (1 of 9)
http://www.windows.ucar.edu/tour/link=/physical_science/physics/mechanics/orbit/ellipse.html
Stuff you need to define
Ellipse
Center
foci
Vertices
endpoints of the major axis
Major axis
Co­vertices
endpoints of the minor axis
Minor Axis
Title: Mar 3­8:53 AM (2 of 9)
Ex 1) Foci are
always on
the Major Axis
x2
What is "h"? ______
What is "k"? ______
16
Is the Major axis horizontal or vertical?
Vertices? _______
Co­vertices? ______
Foci? ______
!!!!!Make sure to label graph!!!!!
Ex 2) Put equation in standard form and then Identify all the stuff. Graph
25x2 + 10y2 = 250
Assignment page 612, numbers 18 - 38
hint: All centers for this assignment are (0, 0)
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y2
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