STEM 1 Flashcards
Pre Calculus
is formed by the intersection of a plane and a double right circular cone
Conic Section
Fixed point of a conic
Focus
fixed line corresponding to the focus
Directrix
line that passes through the focus and perpendicular to the directrix
Principal Axis
point of intersection of the conic and it’s principal axis
Vertex
constant ratio
Eccentricity
set of coplanar points such that the distance from a fixed point is constant
Circle
formula of circle
(x-h)² + (y-k)² = r²
set of all coplanar points that are equidistant from a fixed point called the focus and a fixed line called the directrix
Parabola
point on the parabola midway between the latus rectum and the directrix
Vertex
identifies the opening of the parabola
Focus
fixed line perpendicular to the axis of symmetry
Directrix
the chord that passes through the focus and perpendicular to the axis of symmetry
Latus Rectum
4p(y-k)
Upward
-4p(y-k)
Downward