Pre Calculus - 2nd Session Examination Flashcards
A conic formed when a double right circular cone is cut by plane so that the angle between the plane and the axis is less than the vertex angle
Hyperbola
A conic formed when a double right circular cone is cut by plane so that the angle between the plane and the axis is greater than the vertex angle
Ellipse
A conic formed when a double right circular cone is cut by plane so that the angle between the plane and the axis is equal than the vertex angle
Parabola
It is formed when a plane intersects the double right circular cone at its vertex
Degenerate conics
These are figures obtained by the intersection of a double right circular cone without passing through the vertex
Conic section
Which of the following is an example of a degenerate conic section?
Parallel lines
Standard form of a circle
(x-h)^2 + (y-k)^2 = r^2
If r^2 is greater than equal to 0, then the graph is a circle
False
If r^2 = 0, then the graph is a single point
True
If r^2 is lesser than equal to 0, then the graph is a circle
False
It refers to the midpoint between the two vertices of an ellipse
Center
It refers to the line segment that passes through the center and is perpendicular to the major axis whose endpoints are on the ellipse
Minor axis
It refers to the line segment that passes through the center and is perpendicular to the minor axis whose endpoints are on the ellipse
Major axis
