Question

What is the vertex of g(x) = –3x2 + 18x + 2?

Answer 1

Its C

Explanation:

Answer 2

`\bf \textit{vertex of a parabola}\\\\ \begin{array}{lccclll} g(x) = &-3x^2&+ 18x& + 2\\ &\uparrow &\uparrow &\uparrow \\ &a&b&c \end{array}\qquad \left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)`