Notes - Conic Sections
Ellipse
Ellipse: the locus of points in a plane such that the sum of the distances from the foci is a constant
Stretched Horizontally
a2 > b2
or
Graph by plotting center and the vertices
of the major and minor axes.
Use string and tape to create an ellipse.
See Calculus in Motion
Stretched Vertically
OR
Homework Examples:
Given the equation, find the center and vertices then sketch the graph.