Geometric figures Flashcards
is the intersection of a plane and a cone.
Conic Section
is the set of all points in the plane equidistant from a fixed—point “F” and a fixed line “I” containing F.
Parabola
The fixed point is called the
focus
the fixed line is the
directrix
divides the parabola into two parts.
axis of symmetry
of the parabola is a point on that lies on the axis of symmetry.
vertex
The distance from the vertex to the focus (or directrix) is called the
focal distance
is a segment containing the focus, with endpoints on the parabola and perpendicular to the axis of symmetry.
Latus rectum
is determined by a constant and two fixed points, each called a focus point.
ellipse
The line through the foci of an ellipse is called its
principal axis
Two points on the principal axis are called vertices and the line segment joining them is called the
Major axis
The midpoint of the major axis is called the ___ of the ellipse.
Center
The line segment through the center, perpendicular to the principal axis and with endpoints on the ellipse is called the
Minor axis
The endpoints of the minor axis are called
co-vertices
is determined by a constant and two fixed points each called a focus point.
hyperbola
is the difference between two distances is constant.
hyperbola
is determined by a pair of foci and a given constant is the set of points (x, y) in the plane such that the absolute value of the difference between the distances from (x, y) to the foci is equal to the constant.
hyperbola
The hyperbola has
two branches
hyperbola contain the diagonals of the rectangle and have equations
asymptotes
