Question

what is The equation of the quadratic function with roots -9 and and-3 and a vertex at (-6, -1)

Answer 1

\[x^{2}+(-9+(-3))x +(-9\times-3)\]

Answer 2

\[x ^{2}+12x+27\]

Answer 3

remember that in this form the vertex is at -a,b
y=(x+a)^2 -b
the + or - can be changed