Question

determine o vertice da parabola cuja a função é y=2x²-4x+5

Answer 1

Olá, tudo bem?

$V=\left(-\dfrac{b}{2a};\,\,-\dfrac{\Delta}{4a}\right)\to\\\\\\V=\left(-\dfrac{(-4)}{2\times 2};\,\,-\dfrac{(-24)}{4\times 2}\right)\to\\\\\\V=\left(\dfrac{4}4};\,\,\dfrac{24}{8}\right)\to\boxed{V=(1;\,\,3)}$

É isso!! :)