Question

help please.

Answer 1

Welcome to openstudy!

Answer 2

\(\bf \textit{vertex of a parabola}\\ \quad \\
y = {\color{red}{ -1}}x^2{\color{blue}{ +6}}x{\color{green}{ -11}}\qquad

\left(-\cfrac{{\color{blue}{ b}}}{2{\color{red}{ a}}}\quad ,\quad {\color{green}{ c}}-\cfrac{{\color{blue}{ b}}^2}{4{\color{red}{ a}}}\right)
\)

Answer 3

i think its b.

Answer 4

u are probably right