Parabolas Flashcards
1
Q
What is the formula for the vertex
A
(H,k)
2
Q
What is the formula for the focus of a vertical parabola
A
(H,k+c)
3
Q
What is the equation for the directrix of a vertical parabola
A
Y=k-c
4
Q
What is the axis of a vertical parabola
A
X=h
5
Q
What is the formula for the focus of a horizontal parabola
A
(H+c,k)
6
Q
What is the formula for the directrix of a horizontal parbola
A
X=h-c
7
Q
What is the axis of a horizontal parabola
A
Y=k
