Find the vertex the focus and the directrix Draw the graph o
Find the? vertex, the? focus, and the directrix. Draw the graph of ?(x-2x?2?)^2=?6(y-1)
Find the vertex, the focus, and the directrix. Draw the graph of (x - 2)^2 = - 6(y - 1).Solution
(x-2)^2 = -6(y-1)
standard equation of parabola is
(x-h)^2 = 4p (y-k)
where, h,k is the vertex
vertex = 2,1
4p = -6
p = -6/4 = -3/2
therefore focus = h, k + p = 2 , 1-3/2 = (2,-1/2 )
directrix = y= k-p = 5/2
directrix = y = 5/2
