Question

What are the coordinates of the vertex of f(x) = –x^2 + 6x – 9?


Question 2 options:


A(0, –9)



B(3, –9)


C(3, 0)
@legendarynikki

D(6, 0)

Answer 1

To find the x coordinate of the vertex, find -b/2a using the poynomial in standard form ax^2 + bx + c (which you are given).
What do you get as your answer for the x coordinate? Plug that in as x to find the corresponding y!

Answer 2

I don't know

Answer 3

What are b and a in your polynomial? standard form is ax^2 + bx + c