Question 51091
x^2 + 8x + 6 = y
v(-b/2a,f(x))
v(-8/2,f(x))
v(-4,-10)
~> p = 1/(4a)
~> p = 1/4 = 0.25
focus: (-4,-9.75)
directrix: y = -10.25
{{{graph(300,300,-12,12,-12,12,x^2+8x+6,-10.25)}}}