Conics - Hyperbola
Intros
Lessons
- Hyperbola:
horizontal hyperbola vertical hyperbola
• Graph looks sort of like two mirrored parabolas, with the two "halves" being called "branches".
• "Vertices" are defined similarly to the way of a "vertex" is defined for a parabola.
• Just as the focus for a parabola, the two foci for a hyperbola are inside each branch.
• The line connecting the two vertices is called the "transverse axis".
Examples
Lessons
- properties of a hyperbola
−(4x−6)2+(3y+5)2=1
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Topic Notes
hyperbola: the difference of the distances from any point on a hyperbola to each focus is constant and equal to the transverse axis 2a.
ellipse: the sum of the distances from any point on an ellipse to each focus is constant and equal to the major axis 2a.
c=a2−b2 c: distance from the center to a focus
e=ac e: eccentricity; the larger the value of e, the straighter the hyperbola
ellipse: the sum of the distances from any point on an ellipse to each focus is constant and equal to the major axis 2a.
c=a2−b2 c: distance from the center to a focus
e=ac e: eccentricity; the larger the value of e, the straighter the hyperbola
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