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Parabola (Horizantal (a (a=negative (left), a=positive(right)), Axis of…
Parabola
Horizantal
Axis of symmetry
y=k
Focus
(h+1/4a,k)
Vertix
(h,k)
Directrix
x=h-1/4a
a
a=negative (left)
a=positive(right)
Vertical
Axis of symmetry
x=h
Focus
(h,k+1/4a)
Vertix
(h,k)
Directix
y=k-1/4a
a
a=negative (down)
a=positive(up)
Done by : Faye Wael Sindy