Question

Dada a função f(x) = 4 - x² determine:
a) O vértice
b) Faça o gráfico da função​

Answer 1

$Xv=\frac{-b}{2a}=\frac{0}{8}=0\\\\Yv=\frac{-\Delta}{4a}\\\\\Delta=-4.-1.4\\\Delta=16\\Yv=\frac{-16}{-4}\\\\Yv=4\\\\V(0,4)$