Question

Two quadratic functions are shown.

Answer 1

$\bf \qquad\qquad\textit{vertex of a parabola}\\ \quad \\ \begin{array}{llcclll} f(x)=&4x^2&+8x&+1\\ &\uparrow &\uparrow &\uparrow \\ &a&b&c \end{array}\qquad \left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)$