The function in vertex form is

(refer to your other post I solved it there).
The general form of quadratic equations in vertex form is

, where (h, k) is the vertex of the parabola.
Here, a = 1, h = -6 and k = -54
Therefore, the vertex is (-6, -54) and it is a maximum because a = 1 is postive.
Step-by-step explanation:
7.3 when rounded to the nearest tenth
What is it? I will help. :)
Answer:
c
Step-by-step explanation:
the third picture shows symmetry and equality