conic sections Flashcards
1
Q
x and y squared , same coefficient / sign
A
Circle
2
Q
only one variable is squared
A
Parabola
3
Q
x and y squared , BOTH POSITIVE
A
Ellipse
4
Q
x and y squared , 1 POSITIVE 1 NEGATIVE
A
Hyperbola
5
Q
Equation of Circle
A
(x-h)² + (y-k)² = r²
6
Q
Horizontal Parabola
A
(x-h)² = 4p (y-k)
7
Q
Vertical Parabola
A
4p (x-h) = (y-k)²
8
Q
Latus rectum
A
4p , 2p each from focus
9
Q
PARABOLA:
4p is at (y-k) ; p > 0
A
UP
10
Q
PARABOLA:
4p is at (y-k) ; p < 0
A
DOWN
11
Q
PARABOLA:
4p is at (x-h) ; p > 0
A
RIGHT
12
Q
PARABOLA:
4p is at (x-h) ; p < 0
A
LEFT
13
Q
Horizontal Ellipse
A
(x-h)² / a² + (y-k)² / b² = 1
14
Q
Vertical Ellipse
A
(x-h)² / b² + (y-k)² / a² = 1
15
Q
Ellipse (a)
A
Center to Vertex
