Find the vertex focus and directrix of the parabola Use a gr
Find the vertex, focus, and directrix of the parabola. Use a graphing utility to graph the parabola. x^2 + 2x + 6y - 29 = 0
Solution
x^2 + 2x + 6y -29=0
x^2 + 2x +1 -1 +6y-29=0
(x+1)^2 + 6y-30=0
y= -(1/6)(x+1)^2 +5
Here 4p=6
p=3/2
Here vertex= (-1,5)
focus = (h,k+p)= (-1,5+3/2)=(-1, 13/2)
directrix y= k-p = 5-3/2= 7/2
