Question

Em cada função calcule as raizes determine o vertice
f(x)=9+x²

Answer 1

f(x)=x²+9

a = 1
b = 0
c = 9

$x_V=\frac{-b}{2a} \\ \\ x_V=\frac{0}{2}=0$

$y_V=\frac{-(0^2-4.1.9)}{4.1}=\frac{36}{4}=9$

V(0,9)