2.
Definition of an Ellipse
Set of all points P such that the sum
of the distances between P and the
two foci (plural for “focus”) is
constant.
d1 + d2 = constant
9.
Writing Equations
Write an equation of the ellipse
with the given characteristics and
center (0, 0).
Vertex: (0, 7)
Minor axis 12 units long
Vertex: (-4, 0)
Focus: (2, 0)
10.
You Try!
Write an equation of the ellipse
with center (0,0), vertex at (0, 4)
and minor axis 4 units long.
Find the coordinates of the foci.
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